Carburetor

Product Overview The iFJF 1901 Thunder AVS2 500 CFM carburetor is the next evolution in the Thunder carburetor lineup, featuring enhanced annular flow boosters for even finer fuel atomization. With 12V electric choke, non-EGR calibration, and a clean satin finish, this 4-barrel is purpose-built for small cubic-inch V8 and V6 engines where crisp throttle response matters more than maximum CFM. Ideal for restomods, street rods, and daily drivers with 260-327 CID engines. Key Features AVS2 Annular Boosters — Second-generation annular discharge booster design with improved fuel distribution across all 8 discharge holes. Noticeably smoother idle and better tip-in response than first-gen designs. 500 CFM Precision Calibration — Calibrated specifically for 260-327 CID small block V8s. Avoids the tuning headaches of oversized carburetors on small engines. Electric Choke — 12V automatic choke with adjustable housing. Cold starts in any weather without a manual choke cable. Non-EGR Design — No EGR port or provisions. Ideal for pre-emissions vehicles, off-road builds, and engines with EGR systems removed. Satin Finish Aluminum — Clean, understated appearance that doesn't yellow or discolor. Resists fuel staining and corrosion. Quick-Change Secondary Metering — Swap secondary rods in under 60 seconds with a screwdriver — no carb removal needed. Compatibility Engine Displacement Best Match Chevy Small Block 262-327 CID Mild street cam, stock heads, dual-plane intake Ford Windsor 260-302 CID Stock to mild build, great for early Mustangs Jeep V8 304-360 CID Good for Jeep CJ/Wagoneer with square bore manifold AMC V8 290-304 CID Direct fit on square bore aftermarket intakes Specifications Parameter Value Part Number 1901 CFM Rating 500 CFM Barrel Type 4-Barrel Square Bore Choke 12V Electric Primary Jet 0.095" Secondary Jet 0.095" EGR Non-EGR Finish Satin Aluminum Why AVS2? The AVS2 upgrades the classic Thunder/Edelbrock design with annular flow boosters — the same technology used in high-end racing carburetors. Instead of a single fuel discharge point, each booster has 8 precision-drilled holes that create a cone-shaped fuel mist. The result is more complete combustion at part throttle, smoother transitions, and fuel atomization that rivals EFI at a fraction of the cost. Frequently Asked Questions Q: What's the difference between AVS and AVS2?A: The AVS2 uses annular discharge boosters (8-hole ring) instead of standard down-leg boosters, providing finer fuel atomization. This results in smoother idle, better throttle response, and improved part-throttle fuel economy. Q: Does non-EGR mean I can't use it on a street car?A: Non-EGR simply means the carburetor does not have exhaust gas recirculation ports. It works perfectly on street cars — especially pre-1975 vehicles that didn't have EGR or vehicles where EGR has been removed for off-road use. Q: Can I use this on a 350 Chevy?A: A 500 CFM carburetor may be slightly restrictive for a built 350 at high RPM. For stock or mild 350s, it will work but may limit top-end power. For performance 350+ builds, consider our 600-650 CFM options. Q: Does this come with a fuel line and filter?A: A 5/8"-20 inlet fitting is included. The fuel line and inline filter are sold separately — we recommend a 3/8" braided line with serviceable filter. Q: How do I set the idle mixture?A: Start both mixture screws at 2 turns out. With engine warm and choke fully open, turn each screw in slowly until RPM drops, then back out 1/2 turn. Adjust idle speed to 700-800 RPM.

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Product Overview The iFJF 18990035 Weber 44 IDF carburetor is a premium replacement for 1968-1979 Volkswagen Beetle, Super Beetle, and Transporter (Bus) models with the 1.6L air-cooled engine. Featuring dual 44mm throttle bores, this 2-barrel downdraft carburetor delivers significantly improved throttle response, horsepower, and tunability compared to the stock Solex carburetor. Complete with integrated air horn and striking golden finish. Key Features 44mm Dual Throttle Bores — 44mm barrels provide ample airflow for modified 1600cc engines, including those with bigger camshafts, ported heads, or increased displacement (1776cc, 1915cc). Direct Solex Replacement — Same downdraft configuration as the factory Solex 34 PICT carburetor. Bolts to the stock intake manifold center section. Complete Assembly with Air Horn — Includes integrated air horn for cleaner intake airflow and better filtration mounting. Genuine Weber IDF Design — Based on the legendary Weber IDF circuit with tunable idle jets, main jets, air correction jets, and emulsion tubes — giving you full control over fuel calibration. Golden Finish — Corrosion-resistant golden chromate coating that looks as good as it performs. Tunable Accelerator Pump — Adjustable pump stroke for customizing tip-in fuel delivery. Compatibility Year Model Engine 1968-1979 VW Beetle (Type 1) 1.6L 1584cc H4 1971-1979 VW Super Beetle 1.6L 1584cc H4 1968-1971 VW Transporter Type 2 (211/215/261/265) 1.6L 1584cc H4 1968-1974 VW Karmann Ghia 1.6L 1584cc H4 1968-1973 VW Type 3 (Fastback/Squareback) 1.6L 1584cc H4 (center mount only) Specifications Parameter Value OEM Part Numbers 18990035, 18990030, 18990.035V Carburetor Type 2-Barrel Downdraft (Weber IDF) Throttle Bore 44mm (x2) Venturi Size 36mm Mounting Pattern Standard IDF/Centro-Mount Choke None (performance carburetor) Fuel Inlet M10x1.0 Banjo Fitting Why Upgrade to Weber IDF? The factory Solex 34 PICT-3 carburetor was adequate when new but is now notorious for warped throttle bodies, clogged idle circuits, and difficult cold starts. The Weber IDF design has been the gold standard for air-cooled VW performance since the 1970s. It offers superior tunability with replaceable jets, a more robust accelerator pump circuit, and dramatically improved throttle response. Whether you're restoring a daily driver or building a weekend cruiser, this carburetor transforms how your vintage VW drives. Installation Tips Use new paper gaskets on both sides of the phenolic spacer block Set idle mixture screws at 1 turn out from seated as starting point Verify fuel pressure at 2.5-3.0 PSI — mechanical pumps may need a regulator Base idle speed: 850-900 RPM on air-cooled engines Check for vacuum leaks at intake boots and manifold end castings before tuning With a 009 mechanical advance distributor, set timing to 28-32° BTDC at 3000+ RPM Frequently Asked Questions Q: Will this fit my 1974 Super Beetle with stock engine?A: Yes. The 18990035 Weber 44 IDF is a direct bolt-on replacement for the stock Solex carburetor on your 1974 Super Beetle 1600cc. It bolts to the factory intake manifold center section. Q: Do I need to change my distributor when installing this carburetor?A: The Weber 44 IDF works well with both vacuum-advance (SVDA) and centrifugal-advance (009) distributors. If using a 009, make sure the vacuum port on the carb is capped. Q: Is this carburetor too big for a stock 1600cc engine?A: The 44 IDF is properly sized for stock to mild 1600cc engines when properly jetted. It comes pre-calibrated for 1600cc. If upgrading to 1776cc or larger, you may want to increase main jet sizes. Q: What air filter fits on this carburetor?A: The integrated air horn accepts standard IDF-style air filter assemblies. Low-profile oval filters (commonly available for Beetle engine bays) fit perfectly. Q: Does this carburetor work with dual carb setups?A: This carburetor is designed for single center-mount applications. For dual carb setups, consider dual 40 IDF or 44 IDF kits with appropriate manifolds. Q: Will I need to re-jet for my elevation?A: At elevations above 4,000 ft, you may want to reduce main jet size by 5-10 numbers. Below 4,000 ft, the factory jetting will work well.

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Product Overview The iFJF 18025 (1825) Thunder AVS 650 CFM 4-barrel carburetor is purpose-built for off-road performance. Featuring annular discharge boosters, manual choke control, and a durable satin-finish aluminum body, this carburetor delivers consistent fuel metering through extreme angles, rough terrain, and high-vibration environments. Whether you're rock crawling, mud bogging, or trail riding, the Thunder AVS keeps your engine running strong when the trail gets nasty. Key Features Annular Discharge Boosters — Superior fuel atomization at low and mid-range RPM compared to traditional down-leg boosters. Eight discharge holes per booster ensure an even fuel cone for crisp throttle response. Off-Road Optimized — Spring-loaded needle and seat design and tuned float levels resist fuel slosh at steep angles — no more stalling on inclines. Manual Choke — Reliable cable-operated choke. No electrical connections needed — perfect for off-road rigs with stripped-down wiring. 650 CFM Flow — Sweet spot for small block V8s (283-400 CID) and mild big blocks. Enough airflow for performance without over-carbureting. Satin Finish Aluminum — Corrosion-resistant die-cast aluminum body with a clean satin appearance that stays looking good even after mud and power washing. Square Bore Pattern — Direct fit on most aftermarket intake manifolds and factory 4-barrel square bore intakes. Compatibility Application Engine Size Notes Small Block Chevy (283-400) 283-400 CID Best for 327, 350, 383, 400 with mild cam Small Block Ford (289-351W) 289-351 CID Ideal for 302 and 351W builds Mopar Small Block (318-360) 318-360 CID Fits LA and Magnum engines Mild Big Block V8 396-454 CID Suitable for stock to mild big block builds Off-Road / 4x4 Vehicles Any V8 Optimized for steep angles and rough terrain Specifications Parameter Value Part Number 18025 (also referenced as 1825) CFM Rating 650 CFM Barrels 4-Barrel Square Bore Choke Type Manual Choke Booster Type Annular Discharge Primary Jet 0.095" Secondary Jet 0.098" Body Material Die-Cast Aluminum (Satin Finish) Throttle Bore 1-11/16" Primary / 1-11/16" Secondary Why Choose iFJF Thunder AVS for Off-Road? Standard street carburetors fail off-road. Fuel slosh causes flooding on steep climbs. Vibration shakes floats out of adjustment. Dust clogs vent tubes. We designed the Thunder AVS from the ground up for the abuse of off-roading — sealed vent tubes, spring-loaded needles, and a float bowl design that keeps fuel where it belongs even at 45-degree angles. The annular boosters provide better low-end torque response, critical for crawling over obstacles at idle speed. If you've ever had your rig die mid-climb because the carb flooded out, this is the fix. Installation Notes Standard square bore flange — fits Edelbrock Performer, RPM, and most aftermarket intakes Use a 1/4" heat insulator gasket to prevent heat soak on hot engines Route manual choke cable away from exhaust manifolds/headers Set idle mixture screws at 1-1/2 turns out as baseline Fuel pressure: 5.5 PSI maximum (use regulator if mechanical pump exceeds this) Frequently Asked Questions Q: Will this carburetor work at extreme angles while rock crawling?A: Yes. The Thunder AVS is specifically designed for off-road use with spring-loaded needle and seat assemblies and optimized float levels that resist fuel slosh at angles up to 45 degrees. Q: Can I use this on a street-driven truck too?A: Absolutely. While optimized for off-road, this carburetor performs excellently on the street. The annular boosters deliver crisp throttle response for daily driving. Q: What's the difference between annular and down-leg boosters?A: Annular boosters have 8 small discharge holes arranged in a ring, providing finer fuel atomization and better low-RPM torque. Down-leg boosters have a single discharge point and are typically used in race-only applications. Q: Does this come with mounting hardware?A: Yes — mounting studs, nuts, washers, and a base gasket are included in the box. Q: What fuel line size do I need?A: The fuel inlet accepts a 5/8"-20 thread fitting. We recommend 3/8" fuel line for engines up to 400 HP. Q: Will this fit my Jeep CJ with a Chevy 350 swap?A: Yes — this is an excellent choice for a Chevy 350 swapped into a Jeep CJ, YJ, or TJ. The off-road design handles the angles you'll encounter on the trail.

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Product Overview The iFJF 1806 Performer 600 CFM carburetor delivers the ideal balance of street performance and daily driveability for small block and mild big block V8 engines. Featuring electric choke, air valve secondaries, and non-EGR calibration, this 4-barrel square bore carburetor is pre-calibrated for a wide range of engines from 305 to 402 cubic inches. Whether you're upgrading from a worn-out factory carb or building a fresh engine, the 1806 delivers out-of-the-box performance. Key Features 600 CFM — Universal Sweet Spot — The most versatile CFM rating for street V8s. Works well on everything from mild 305s to warmed-up 400s without over-carbureting. Air Valve Secondary — The secondary air valve opens progressively based on airflow demand. No bog, no hesitation — just smooth, seamless power delivery. Electric Choke (12V) — Automatic choke with adjustable housing. Fast warm-up, consistent cold starts in any season. Non-EGR Design — No exhaust gas recirculation provisions. Perfect for pre-emissions vehicles, off-road applications, or engines with EGR delete modifications. Two-Piece Aluminum Construction — Fewer gasket surfaces than three-piece designs. Resists warping and fuel leaks better than pot metal castings. Pre-Calibrated & Flow Tested — Each carburetor is wet-flow tested on a calibration engine before packaging. Ready to run with minimal tuning. Compatibility Engine Family Displacement Typical Vehicles Chevy Small Block 305, 327, 350, 383, 400 Camaro, Chevelle, C10, Nova, Impala, Monte Carlo Ford Windsor/Cleveland 302, 351W, 351C, 400M Mustang, F-150, Bronco, Torino, Cougar Mopar LA/Magnum 318, 340, 360 Charger, Challenger, Dart, Duster, Ram, Dakota AMC V8 304, 360, 390, 401 Javelin, AMX, CJ, Wagoneer, Cherokee Buick/Olds/Pontiac V8 301-403 Square bore intake required Specifications Parameter Value Part Number 1806 CFM Rating 600 CFM Barrel Type 4-Barrel Square Bore Choke 12V Electric Secondary Type Air Valve (Adjustable) Body Material Die-Cast Aluminum (Two-Piece) EGR Non-EGR (No EGR Provisions) Why iFJF Performer 1806? The 600 CFM Performer has been the go-to street performance carburetor for decades. Our 1806 builds on that legacy with modern manufacturing precision. The air valve secondary design is inherently smoother than mechanical secondaries for street driving — you don't get the sudden "hit" that can break tires loose unexpectedly on wet pavement. Combined with the 12V electric choke, this is the set-it-and-forget-it carburetor that starts reliably and drives smoothly from cold mornings to hot summer afternoons. Frequently Asked Questions Q: Will this fit my 350 Chevy with an Edelbrock Performer intake?A: Yes. The 1806 has a standard square bore flange that matches the Edelbrock Performer, Performer RPM, and most other aftermarket intakes. Direct bolt-on — no adapter needed. Q: What's air valve secondary vs. vacuum secondary?A: Air valve secondaries use a spring-loaded flap above the secondary throttle plates. As airflow increases, the valve opens progressively — providing smoother engagement than mechanical secondaries and more precise control than pure vacuum secondaries. Q: Will this work with my TH350 automatic transmission?A: Yes. The throttle lever includes provisions for GM TH350, TH400, 700R4, and 200-4R kickdown cables. Ford AOD and C4/C6 linkages are also supported with the correct bracket. Q: Does non-EGR mean it won't pass emissions?A: Non-EGR carburetors are intended for pre-emissions vehicles (generally pre-1975), off-road vehicles, or vehicles where the EGR system has been removed. Not for use on emissions-controlled vehicles where EGR is required by law. Q: Can I use this on a marine engine?A: No. Marine engines require USCG-approved carburetors with specific safety features (sealed overflow, J-tube venting). Use only marine-rated carburetors on boats. Q: What timing should I run with this carburetor?A: For most small block Chevy engines, start with 10-12° initial timing and 34-36° total mechanical advance by 3,000 RPM. Adjust vacuum advance to provide 10-12° additional under light cruise.

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Product Overview The iFJF 1805 Thunder AVS 650 CFM carburetor delivers classic muscle car performance with modern manufacturing precision. Featuring annular discharge boosters, manual choke operation, and a clean satin-finish aluminum body, it's the go-to upgrade for small block V8s from 283 to 400 cubic inches. Whether you're building a weekend cruiser, a street/strip car, or restoring a classic, the 1805 provides reliable fuel delivery and crisp throttle response. Key Features 650 CFM Airflow — The ideal CFM rating for street-driven small block V8s. Provides excellent throttle response without the low-speed drivability issues that plague oversized carburetors. Annular Discharge Boosters — Eight precision-drilled discharge holes per booster atomize fuel more effectively than single-point boosters, resulting in smoother idle, better part-throttle response, and improved fuel economy. Manual Choke — Simple, reliable cable-operated choke. No electrical connections, no vacuum diaphragms to fail. You control exactly when to engage and disengage. Two-Piece Aluminum Body — Die-cast aluminum construction with fewer gasket surfaces than three-piece designs means fewer potential leak points and greater durability. Square Bore Mounting — Direct bolt-on for most aftermarket 4-barrel intakes (Edelbrock Performer, RPM, Weiand, Holley) and factory square bore manifolds. Compatibility Engine Family Displacement Typical Applications Chevy Small Block 283, 305, 307, 327, 350, 383, 400 Camaro, Chevelle, Nova, C10, Impala, Monte Carlo Ford Small Block 289, 302, 351W Mustang, F-150, Bronco, Fairlane, Torino Mopar Small Block 273, 318, 340, 360 Charger, Challenger, Dart, Duster, Ram AMC V8 290, 304, 343, 360, 390, 401 Javelin, AMX, CJ-5, CJ-7, Wagoneer Buick/Olds/Pontiac 300-455 Square bore intake required (verify manifold pattern) Specifications Parameter Value Part Number 1805 CFM Rating 650 CFM Barrels 4-Barrel Square Bore Choke Manual Choke Booster Type Annular Discharge Primary Jet 0.095" Secondary Jet 0.098" Body Material Die-Cast Aluminum (Satin) Fuel Inlet 5/8"-20 Thread Why iFJF 1805 vs. OEM? Factory carburetors from the 60s-80s are now 40-60 years old. They suffer from warped castings, corroded passages, worn throttle shafts, and degraded accelerator pumps. Our 1805 is brand new — no core required, no rebuilding, no surprises. The annular boosters found on the Thunder AVS are a genuine upgrade over standard boosters, providing fuel atomization comparable to fuel injection at a fraction of the cost. Each unit is wet-flow tested and pre-calibrated for out-of-the-box performance. Frequently Asked Questions Q: Will this bolt onto a stock Chevy 350 intake manifold?A: Yes — as long as your intake manifold has a square bore flange pattern. Most 1966-and-later Chevy small block intakes are square bore. If you have a spread bore manifold (e.g., some Quadrajet applications), you'll need an adapter. Q: What's included in the box?A: Carburetor, base gasket, mounting studs/nuts/washers, and installation instructions. Q: Can I use this with an automatic transmission?A: Yes. The 1805 works with both automatic and manual transmissions. You'll need to connect your transmission's kickdown linkage (TH350/TH400/700R4) using the provided throttle lever. Q: How do I hook up the manual choke?A: Route a universal choke cable (not included) from the choke lever on the carburetor, through the firewall grommet, to a dash-mounted pull knob. Most auto parts stores carry universal choke cable kits for $10-20. Q: Will this work at high altitude (5,000+ ft)?A: At high altitude, you may need to lean the mixture. The 1805 accepts standard Edelbrock/Thunder-series jets and metering rods for calibration. For altitudes above 5,000 ft, go down 1-2 jet sizes.

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Product Overview The iFJF 1801 Thunder AVS 500 CFM 4-barrel carburetor is purpose-calibrated for small displacement V8 and V6 engines. With annular discharge boosters, electric choke, and the signature Thunder AVS tunability, this carburetor delivers crisp throttle response and excellent driveability on engines from 260 to 327 cubic inches. Perfect for street rods, compact V8s, and mild cruiser builds. Key Features 500 CFM — Right-Sized — Properly sized for smaller displacement engines (260-327 CID). Avoids the low-speed drivability issues caused by over-carbureting with larger 600-750 CFM carbs. Electric Choke — Automatic 12V electric choke provides hassle-free cold starts. Heats up in 1-2 minutes and opens progressively — no manual cable to route. Annular Discharge Boosters — Eight-hole booster rings deliver superior fuel atomization at low airflow rates, critical for small engines that spend most of their time at part throttle. Tool-Free Secondary Tuning — Change secondary metering rods in seconds through the top of the carburetor. No disassembly required. Aluminum Body — Lightweight, corrosion-resistant, and runs cooler than cast iron. Factory pre-calibrated and wet-flow tested. Compatibility Engine Displacement Application Notes Chevy Small Block 262, 267, 283, 305, 307 Best for mild-cam street engines Ford Small Block 255, 260, 289, 302 Ideal for Mustang, Falcon, early F-100 Buick V6 / V8 231, 252, 260, 300 Fits square bore intake manifolds Chevy V6 (4.3L) 262 Requires 4-barrel intake manifold Jeep V8 304 Good match for CJ and Wagoneer builds Specifications Parameter Value Part Number 1801 CFM Rating 500 CFM Barrels 4-Barrel Square Bore Choke 12V Electric Choke Booster Type Annular Discharge Primary Jet 0.086" (factory) Secondary Jet 0.092" (factory) Body Material Die-Cast Aluminum Why 500 CFM? Small engines don't need big carbs. A 305 with a 750 CFM carb will have sluggish throttle response, poor fuel economy, and a weak vacuum signal that makes tuning impossible. The 1801 is designed and calibrated specifically for 260-327 CID engines. You'll get crisp off-idle response, stable idle, and excellent part-throttle manners — the things you actually feel when driving. Frequently Asked Questions Q: Is 500 CFM enough for my 305 Chevy?A: Yes. A 305 at 5,500 RPM requires approximately 485 CFM at 100% volumetric efficiency. The 500 CFM rating is ideal — it provides enough airflow without the sluggish low-speed response of an oversized carb. Q: How do I wire the electric choke?A: Connect the choke's positive terminal to a 12V ignition-switched source (only powered when the key is ON). Do NOT connect to the coil positive terminal. The choke housing grounds through the carburetor body. Q: Can I adjust the choke?A: Yes. Loosen the three screws on the choke housing and rotate it to adjust the opening rate. Turn toward "rich" (clockwise) for slower opening in cold weather; toward "lean" (counterclockwise) for faster opening in warm climates. Q: Will this fit a 2-barrel to 4-barrel conversion?A: Yes, as long as you use a 4-barrel square bore intake manifold. You cannot bolt a 4-barrel carb to a 2-barrel intake without an adapter (not recommended). Q: Is this carb compatible with EGR?A: This carburetor does not have EGR provisions. It is designed for non-EGR applications or vehicles with EGR systems deleted (for off-road/racing use only).

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Complete Carburetor Rebuild Kit — Mercury/Mariner Outboard The iFJF 18-7750-1 carburetor repair kit provides a comprehensive solution for rebuilding your outboard carburetor. Engineered for Mercury, Mariner, and compatible 2-stroke outboard applications, this kit replaces all critical wear components — restoring proper fuel metering, eliminating fuel leaks, and returning your engine to peak running condition. Key Features Complete Rebuild Kit: Includes float bowl gasket, inlet needle & seat, body gaskets, o-rings, welch plugs, and drain screw washers — everything required for a full carburetor overhaul. Ethanol-Resistant Components: All rubber and composite parts are formulated to withstand E10 and ethanol-blended fuels that can swell and degrade standard materials. OEM-Spec Precision: Manufactured to exact factory tolerances for proper float height control, leak-free sealing, and consistent fuel delivery throughout the RPM range. Restores Performance: Fixes common outboard issues: hard starting, rough idle, hesitation on acceleration, fuel leaks, and rich/lean running conditions. Cost-Effective: A fraction of the cost of a complete carburetor replacement — and in most cases, the only parts that actually wear out. Cross-Reference / Interchange Part Numbers Brand Part Number Sierra Marine 18-7750-1 Mercury / Mariner OEM 1395-8236354, 1395-8236353, 1395-8236352, 1395-8236351 Why Carburetor Gaskets Fail Modern pump gasoline contains up to 10% ethanol (E10) — a solvent that attacks traditional rubber and cork gasket materials. Over time, ethanol causes gaskets to swell, shrink, or disintegrate entirely. This kit's components use upgraded materials designed to resist ethanol degradation, providing a longer-lasting seal in today's fuel environment. For maximum lifespan, we recommend using ethanol-free marine fuel whenever available. Installation Tips Document everything: Take photos of linkage positions, hose routing, and gasket orientation before disassembly. Deep clean: Soak the stripped carburetor body in quality carb cleaner. Blow compressed air through every passage. Verify float height: Check and adjust to factory specification before closing the bowl. Incorrect float height is the #1 cause of post-rebuild running issues. Replace one at a time: On multi-carb engines, rebuild carbs individually to avoid mixing up components. Primer bulb test: After reassembly, pump the primer bulb until firm and check for leaks before starting. Initial start: It may take several pulls or extended cranking to fill the dry carburetor with fuel. Frequently Asked Questions Q: How many carburetors does one kit cover?A: One kit services ONE carburetor. If your outboard has 2, 3, or 4 carburetors, order the corresponding number of kits. For best results, rebuild all carburetors at the same time for balanced fuel delivery. Q: Does this kit include new jets?A: No. Jets are typically reusable unless physically damaged or severely corroded. The jets in your existing carburetor can be cleaned and reinstalled. If you need replacement jets, they're available separately. Q: Will this fix my engine running rough at low RPM?A: In many cases, yes. Rough low-speed running is often caused by a clogged pilot/idle circuit or air leak from deteriorated gaskets. The thorough cleaning you'll perform during the rebuild, combined with new gaskets, addresses both issues. Q: How long does a rebuilt carburetor last?A: With ethanol-free fuel, 5-10+ years before another rebuild is needed. With E10 fuel and regular use, expect 3-5 years. Running the carburetor dry before storage significantly extends rebuild life by preventing fuel varnish buildup. Q: Can a beginner rebuild an outboard carburetor?A: Yes, with patience and organization. Key requirements: a clean workspace, good lighting, a service manual for your specific engine, and the discipline to not rush. Budget 1.5-2 hours per carburetor. Related Blog Posts Marine Fuel Water Separator Guide: Why Your Outboard Needs One Best Water Separator Fuel Filter for Diesel & Marine Engines — 2026 Guide

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Carburetor Repair Kit for Toyota 22R Engine — 2.4L 2BBL The iFJF 15827A Carburetor Repair Kit contains everything needed to rebuild the factory Aisan 2-barrel carburetor on the legendary Toyota 22R 2.4L engine. Whether your 1984 4Runner is suffering from hard starts, rough idle, hesitation, or fuel leaks, this comprehensive kit restores factory performance with all new gaskets, seals, and wear components. Kit Contents Complete Gasket Set — Air horn gasket, main body gasket, throttle body gasket, and all small O-rings and seals Needle & Seat Assembly — New fuel inlet needle valve and seat for proper float bowl fuel level control Accelerator Pump Plunger — Restores crisp throttle response by replacing the worn pump diaphragm/plunger Power Piston — Replacement power valve piston assembly Check Balls & Clips — All accelerator pump circuit check balls, clips, and retainers Adjustment Screw Seals — Idle mixture screw O-rings and caps Float Bowl Drain Plug Gasket — Prevents fuel leaks from the drain plug Vehicle Compatibility Vehicle Engine Year Range Toyota 4Runner 22R 2.4L 1984 (carbureted models) Toyota Pickup/Hilux 22R 2.4L 1981-1988 (carbureted models) Toyota Celica 22R 2.4L 1981-1985 (carbureted models) Signs Your 22R Carburetor Needs a Rebuild Engine cranks but won't start without starting fluid Stalling at stops signs or when coming to idle Hesitation or flat spot during acceleration Fuel smell or visible fuel leaks around the carburetor Rough idle that can't be fixed with idle adjustment Black smoke from exhaust (running rich) Failed emissions test due to high HC or CO Frequently Asked Questions Q: Does this kit work on the 22RE (fuel injected) engine? A: No — the 22RE uses electronic fuel injection and does not have a carburetor. This kit is only for the carbureted 22R engine. Q: How difficult is a 22R carburetor rebuild? A: A patient DIYer with basic mechanical skills and a clean workspace can complete this rebuild in 2-4 hours. The Aisan 2-barrel is relatively straightforward with fewer circuits than a 4-barrel. Take photos during disassembly and keep parts organized in labeled bags. Q: Do I need any special tools? A: Basic hand tools are sufficient. A can of carburetor cleaner, compressed air for blowing out passages, and a clean work surface are highly recommended. A small telescoping magnet helps retrieve dropped check balls. Q: Will this fix my hard cold-start problem? A: If the hard start is caused by a worn accelerator pump (no fuel squirt when you pump the gas), leaking needle & seat (flooded engine), or vacuum leaks from dried gaskets, this kit will resolve those issues. If the problem is ignition-related (spark plugs, wires, timing), the carb kit alone won't fix it. Q: Does this kit include a float? A: No, the float is not included. If your float is saturated (brass float) or cracked (plastic float), it must be purchased separately. Test your float before ordering — a brass float that rattles or a plastic float that feels heavy has failed. Q: Are adjustment instructions included? A: Basic specifications (float level, idle mixture initial setting) are included. We recommend having a Toyota 22R factory service manual or Haynes/Chilton manual for detailed tuning procedures and torque specs. 🔗 Related Products from iFJF 1404 Performer 500 CFM Carburetor 📚 Helpful Installation Guides 📖 Diesel Engine Cooling System Flush Guide 📖 GM Truck Tie Rod Upgrade Installation

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1478 Electric Choke Conversion Kit for Edelbrock 1405/1406 Carburetors The iFJF 1478 Electric Choke Kit converts your manual-choke Edelbrock 1405 (or replaces a worn electric choke on the 1406) to automatic 12V electric choke operation. No more fishing a choke cable through the firewall — just pump the gas once, turn the key, and the thermostatic choke element handles cold-start enrichment automatically. Key Features Direct Fit — Bolt-on replacement for Edelbrock 1405 and 1406 Performer Series carburetors 12V Electric Operation — Connect to any ignition-switched 12V source for automatic choke function Thermostatic Element — Bimetallic spring opens the choke plate progressively as the engine warms up Includes All Hardware — Choke housing, thermostatic element, fast idle cam, linkage, screws, and gasket Adjustable — Rotate the housing to fine-tune choke opening rate for your climate and engine setup Vacuum Pull-Off Compatible — Works with the existing internal vacuum piston on your 1405/1406 Compatibility Carburetor Model Application 1405 Performer (Manual Choke) Converts manual to electric choke 1406 Performer (Electric Choke) Replacement for worn/failed electric choke Installation Overview Remove the manual choke housing (3 screws) from the passenger side of the carburetor Install the new choke housing with the provided gasket Connect the fast idle linkage to the choke shaft Route the 12V wire to an ignition-switched power source Adjust the choke housing index to set the correct opening rate Frequently Asked Questions Q: Will this fit my 1405 carburetor? A: Yes — the 1478 kit is specifically designed as a direct bolt-on conversion for the Edelbrock 1405 manual choke carburetor. It also fits the 1406 as a replacement electric choke unit. Q: Where should I connect the 12V wire? A: Connect to a key-on 12V source such as the ignition coil positive terminal, the IGN terminal on the fuse box, or a switched 12V circuit. Do not connect to constant 12V — the choke element will drain the battery when the engine is off. Q: How do I adjust the choke? A: The choke housing has index marks. Rotate clockwise (richer) for colder climates or engines that need more warm-up enrichment. Rotate counter-clockwise (leaner) for warm climates. The factory setting (center mark) works well for most applications in temperate regions. Q: Do I need to re-jet after installing the electric choke? A: No. The choke only affects cold-start and warm-up enrichment. Once the engine reaches operating temperature, the choke is fully open and has zero effect on the main fuel circuit. Q: Can I install this without removing the carburetor? A: Yes — the choke housing is accessible on the passenger side of the carburetor and can be swapped with the carburetor installed on the engine. The job typically takes 15-30 minutes. 🔗 Related Products from iFJF 1405 Performer 600 CFM Carburetor 1406 Performer 600 CFM Carburetor 📚 Helpful Installation Guides 📖 How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links 📖 iFJF 1403 Performer 500 CFM 4-Barrel Carburetor Installation Guide 📖 Related Guide Installing a Performer-pattern 4-barrel? Read our iFJF 1403 Performer 500 CFM 4-Barrel Carburetor Installation Guide for the full bolt-on sequence.

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Edelbrock 1410 Marine Performer Carburetor — 750 CFM, 4-Barrel The iFJF 1410 Marine Carburetor delivers 750 CFM of USCG-compliant airflow for big block marine V8 engines. When 600 CFM isn't enough for your 454, 460, or 502 marine engine, the 1410's larger venturi and increased flow capacity provide the top-end power needed for heavy cruisers, performance boats, and high-output inboard applications. Key Features 750 CFM Flow — 25% more airflow than the 1409, designed for big block V8 marine engines 396-502+ cubic inches Electric Choke — Reliable 12V automatic choke for consistent cold starts on the water USCG Compliant — Sealed throttle shafts, marine vent routing, and all required safety features Air Valve Secondary — Demand-based secondary opening for smooth acceleration without bog Golden Dichromate Finish — Excellent corrosion resistance for marine environments Big Block Calibration — Factory-jetted for the fuel demands of high-displacement marine engines Ideal Applications Engine Displacement Typical Use Chevy Marine Big Block 396, 427, 454, 502 Cruisers, performance boats, ski boats Chrysler Marine Big Block 400, 413, 426, 440 Heavy cruisers, houseboats Ford Marine 429, 460 Jet boats, performance inboards Specifications Specification Value CFM Rating 750 CFM Barrels 4-Barrel Choke Type Electric (12V) Flange Type Square Bore Finish Gold Dichromate Secondary Type Air Valve (Mechanical) Certification USCG Compliant Frequently Asked Questions Q: Is 750 CFM too much for my 350? A: Yes — 750 CFM is over-carbureted for a small block 350. For 305-350 marine engines, use the 1409 (600 CFM) instead. The 1410 is designed for big block applications 396 cubic inches and larger. Q: Can I use this on a Mercruiser 7.4L Bravo? A: Yes, the 1410 is an excellent upgrade for the Mercruiser 7.4L (454) when paired with a square bore intake manifold. Verify your intake flange type before ordering. Q: What fuel line size is needed? A: We recommend 3/8" minimum marine-rated fuel line for 750 CFM applications. For engines above 500 HP, use 1/2" fuel line with a high-volume marine fuel pump. Q: What's the expected fuel consumption at cruise? A: Fuel consumption depends on engine load, hull type, and cruise RPM. The 1410's air valve secondary design helps maintain reasonable fuel economy at part-throttle cruise because the secondary barrels only open under high demand. Q: Does this include a flame arrestor? A: A flame arrestor is not included and must be used. All marine inboard engines require a USCG-approved flame arrestor. The 1410 accepts standard 5-1/8" neck flame arrestors. 🔗 Related Products from iFJF 1409 Marine Carburetor 600 CFM 1806 Performer Carburetor 4-Barrel 📚 Helpful Installation Guides 📖 Mercruiser 4.3L V6 Marine Carburetor Replacement Guide: 3310-807764A1 Electric Choke Install & Tuning 📖 How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links

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Edelbrock 1409 Marine Performer Carburetor — 600 CFM, 4-Barrel The iFJF 1409 Marine Performer Carburetor brings the proven AFB-style design to marine applications. With 600 CFM airflow, electric choke, and USCG-compliant safety features, this carburetor is a direct performance upgrade for Chrysler Marine and Chevy Marine V8 inboard engines. The air valve secondary system delivers smooth, predictable power delivery that's essential for docking, trolling, and hole-shot acceleration. Marine-Specific Design Sealed Throttle Shaft Bearings — Eliminates fuel vapor leakage into enclosed engine compartments Overflow-Safe Vent Design — Bowl vents route excess fuel back through the venturi instead of spilling externally Marine Fuel Curve — Calibrated for sustained high-load marine operation at 3,000-4,500 RPM cruising speeds Corrosion-Resistant — All external hardware is stainless steel or dichromate-coated for saltwater durability Two-Piece Body — Easy tuning access without full disassembly Applications Direct replacement for Chrysler Marine 318, 360, 400, and 440 V8 engines and Chevy Marine 305, 350, and 454 V8 engines originally equipped with a 4-barrel square bore carburetor. Also fits aftermarket marine intake manifolds with square bore flanges. Specifications Spec Detail CFM 600 Barrels 4 Choke Electric (12V) Secondary Air Valve (Mechanical) Flange Square Bore Compliance USCG Frequently Asked Questions Q: Is this a genuine Edelbrock carburetor? A: This is an aftermarket replacement for the Edelbrock 1409, engineered to the same specifications and dimensions for direct bolt-on installation. Q: Does it include mounting gaskets? A: Yes, a base gasket and mounting hardware are included. For marine applications, always use a marine-grade intake manifold gasket rated for enclosed engine compartments. Q: Can this be used on a freshwater-cooled boat? A: Yes, it is suitable for both freshwater and saltwater applications. For saltwater use, we recommend regular inspection of external surfaces and periodic application of corrosion inhibitor spray. Q: What's the break-in procedure? A: No special break-in is required. Install, connect the 12V choke wire, set idle speed to 650-700 RPM (in gear, in water), and verify float level after the first hour of operation. Q: Can I convert my 2-barrel marine engine to this 4-barrel? A: Yes, if you change to a 4-barrel marine intake manifold. The 1409 is an excellent upgrade that improves both performance and fuel economy at cruising speeds when paired with the correct intake. 🔗 Related Products from iFJF 1410 Marine Carburetor 750 CFM (Golden) 1409 Marine Carburetor 600 CFM (Golden) 1806 Performer Carburetor 4-Barrel 📚 Helpful Installation Guides 📖 Mercruiser 4.3L V6 Marine Carburetor Replacement Guide: 3310-807764A1 Electric Choke Install & Tuning 📖 How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links

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Edelbrock 1409 Marine Carburetor — 600 CFM, USCG Compliant The iFJF 1409 Marine Carburetor is purpose-built for the water. With 600 CFM airflow, an electric choke, and full USCG compliance, this 4-barrel carburetor is engineered for Chrysler Marine and Chevy Marine V8 engines. Unlike automotive carburetors, the 1409 features sealed throttle shafts, J-style vent tubes, and marine-specific fuel bowl vents that prevent fuel spillage in rough water conditions. Key Marine-Specific Features USCG Compliant — Meets United States Coast Guard safety requirements for fuel system integrity on inboard marine engines Sealed Throttle Shafts — Prevents fuel and vapor leakage into the engine compartment J-Style Vent Tubes — Redirects fuel bowl overflow back into the venturi instead of spilling onto the intake manifold Marine-Calibrated Jetting — Optimized fuel curve for constant-load marine operation vs stop-and-go automotive use 600 CFM Flow — Ideal for Chrysler Marine 318-440 and Chevy Marine 305-454 V8 engines Electric Choke — Reliable cold starts on the water with simple 12V wiring Gold Finish — Premium corrosion-resistant coating for the marine environment Marine Engine Compatibility Marine Engine Displacement Carburetor Model Chrysler Marine 318, 360, 400, 440 V8 Edelbrock 1409 replacement Chevy Marine 305, 350, 454 V8 Edelbrock 1409 replacement Mercruiser (OEM) 5.0L, 5.7L, 7.4L Square bore intake required OMC / Volvo Penta 5.0L, 5.7L, 7.4L, 8.1L Verify intake manifold pattern Specifications Specification Value CFM Rating 600 CFM Barrels 4-Barrel Choke Type Electric (12V) Flange Type Square Bore Finish Gold Dichromate Certification USCG Compliant Frequently Asked Questions Q: Can I use an automotive carburetor on my boat? A: No. Marine carburetors have specific safety features — sealed throttle shafts, J-vent tubes, and marine-specific calibrations — that auto carburetors lack. Using an automotive carburetor on a boat is dangerous and violates USCG regulations. Q: Will this bolt up to my Mercruiser intake? A: The 1409 has a standard square bore flange pattern. Most Mercruiser 5.0L/5.7L intake manifolds are spread bore (Quadrajet pattern). A square-to-spread bore adapter plate is required for those applications. The 7.4L/454 often uses a square bore intake and can accept the 1409 directly. Q: Do I need a different fuel line for marine use? A: Yes — marine applications require USCG Type A1 fuel hose with fire-resistant rating. Standard automotive fuel line is not approved for enclosed engine compartments on boats. Q: What fuel pressure should I run? A: 5.5-6.0 PSI maximum. A marine-grade fuel pressure regulator is recommended. High fuel pressure from a mechanical pump (common on big block marine engines) can flood the carburetor and create a fire hazard. Q: Is tuning different for marine vs automotive? A: Marine engines operate under constant load with less variation in RPM, so the fuel curve is calibrated richer at cruise. The 1409 comes pre-calibrated for marine use. Only adjust jetting if you're at high altitude or have made significant engine modifications. Q: Does installation require a marine mechanic? A: While a DIY-capable boat owner can install this carburetor, we recommend professional installation if you're unfamiliar with marine fuel systems. Improper installation creates serious fire and explosion risks in enclosed engine compartments. 🔗 Related Products from iFJF 1409 Marine Carburetor 600 CFM 1410 Marine Carburetor 750 CFM (Golden) 📚 Helpful Installation Guides 📖 Mercruiser 4.3L V6 Marine Carburetor Replacement Guide: 3310-807764A1 Electric Choke Install & Tuning 📖 How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links

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1406 600 CFM Performer Carburetor — Electric Choke, 4-Barrel Square Bore The iFJF 1406 Performer carburetor is a precision-engineered 600 CFM 4-barrel square bore carburetor with automatic electric choke — a direct replacement for the legendary Edelbrock 1406. Designed for street performance and mild race applications on 350-454ci V8 engines, this carburetor delivers crisp throttle response, consistent fuel metering, and hassle-free cold starts every time. Key Features 600 CFM Flow Rating: Optimized for street performance V8 engines from 350 to 454 cubic inches. Delivers excellent throttle response with good fuel economy at cruise. Automatic Electric Choke: 12V heating element progressively opens the choke plate — no cables, no manual intervention. Just turn the key and go. 4-Barrel Square Bore: Direct bolt-on for Edelbrock Performer, Performer RPM, and most OEM and aftermarket square bore intake manifolds. Vacuum Air Valve Secondary: Demand-based secondary opening prevents bog while delivering full CFM when you need it. Far more street-friendly than mechanical secondaries. Externally Tunable: Idle mixture screws, metering rods, step-up springs, and accelerator pump all accessible without removing the carburetor. No EGR Provision: Clean design without exhaust gas recirculation ports — ideal for pre-emissions vehicles and off-road/racing applications. Technical Specifications Specification Value CFM Rating 600 CFM @ 1.5 inHg Barrel Configuration 4-Barrel, Square Bore Choke Type Automatic Electric (12V) Secondary Type Vacuum Air Valve (Adjustable) Fuel Inlet Single 5/8"-20 UNF Throttle Bore Prim 1-7/16" / Sec 1-11/16" Float Level 7/16" from bowl top (idle) Fuel Pressure 5.5 psi maximum 1405 vs 1406: Which Should You Choose? Feature 1405 (Manual Choke) 1406 (Electric Choke) Choke Control Cable (driver-operated) Automatic (12V heated) Best For Race cars, off-road, hot rods Daily drivers, street cars, cruisers Cold Start Driver sets choke, adjusts as engine warms Automatic — turn key and go Wiring Required No (mechanical cable only) Yes (12V ignition-switched source) Calibration Slightly richer for cold-start control Slightly leaner for fuel economy Tuning & Setup Choke Adjustment: Rotate the black choke housing to adjust choke plate closure at cold. More rotation clockwise = richer cold mixture. Mark the factory position before adjusting. Fast Idle: With engine cold, set fast idle to 1,500-1,800 RPM via the fast idle screw on the throttle linkage. Idle Mixture: Warm engine fully. Using vacuum gauge, adjust each idle screw for peak vacuum, then back out 1/8 turn from lean best idle. Accelerator Pump: Three holes on the pump arm for different pump shot volume. Top hole = largest shot (for engines that bog on tip-in). Step-Up Springs: Factory 5" Hg (silver) spring works for most street engines. Lower vacuum camshafts need softer springs (3" or 4" Hg). Frequently Asked Questions Q: Should I get the 1405 or 1406 for my truck?A: For a daily-driven truck or any vehicle you want to start easily in all weather, the 1406 (electric choke) is the better choice. The 1405 (manual choke) requires installing a choke cable through the firewall and manual adjustment every cold start — better suited to dedicated race/off-road vehicles. Q: Where do I connect the electric choke wire?A: Connect to a 12V ignition-switched source — typically the ignition coil positive terminal, an IGN terminal on the fuse block, or the alternator field wire. DO NOT connect to the coil negative or to a constant 12V source (will drain battery). Q: Will this fit my Quadrajet intake?A: Quadrajet (spread bore) intakes require a square bore to spread bore adapter plate. Alternatively, consider an aftermarket dual-plane square bore intake manifold for best results. Q: Does this carb work at high altitude?A: The 1406 runs slightly rich at altitude. Above 5,000 feet, step down 1-2 jet sizes (factory primary jets: .098", secondary: .095"). For altitudes above 7,000 feet, consider a calibration kit with altitude-specific rods and jets. Q: What's included in the box?A: Complete assembled carburetor, mounting gasket, throttle ball stud, throttle return spring bracket, installation manual, and tuning reference chart. Related Products iFJF 1405 600 CFM Performer Carb — Manual Choke — Same carb with cable-operated manual choke 18-7665 Marine Electric Choke — Choke assembly for Mercruiser marine applications Related Blog Posts Complete Guide: How to Rebuild Edelbrock 1406 and 1405 Carburetors How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links 1965-1967 Mustang 200ci Inline-6 Carburetor Replacement Guide

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Edelbrock 1406 Performer 600 CFM Carburetor — Electric Choke, AFB-Style The iFJF 1406 Performer Series Carburetor is the go-to 600 CFM 4-barrel for street performance enthusiasts who want plug-and-play reliability. Featuring an electric choke for hassle-free cold starts and the legendary AFB-style air valve secondary design, this carburetor is a direct replacement for the Edelbrock 1406 and fits a wide range of GM, Ford, and Mopar V8 engines. Key Features 600 CFM Airflow — Ideal airflow for mild to moderate street V8 builds from 305 to 454 cubic inches Electric Choke — Automatic cold-start enrichment with 12V connection — no choke cable to route through the firewall AFB-Style Architecture — No power valves to fail; metering rods provide consistent fuel curve across all RPM ranges 4-Barrel Square Bore — Bolts directly to Edelbrock Performer, Performer RPM, and most aftermarket square bore intakes Gold Dichromate Finish — Timeless hot-rod aesthetic with excellent corrosion protection Two-Piece Design — Access jets and metering rods in minutes without removing the carburetor Air Valve Secondary — Smooth, progressive secondary opening eliminates bog Vehicle Compatibility Make Models Engine Chevrolet / GMC Silverado, C/K Series, Camaro, Chevelle, Nova, Impala, Suburban, Blazer 305, 327, 350, 383, 400, 454 V8 Ford / Mercury Mustang, F-150, Torino, Cougar, Fairlane, Galaxy 302, 351W, 351C, 390, 428, 460 V8 Chrysler / Dodge / Plymouth Charger, Challenger, Road Runner, Barracuda, D100/D150 318, 340, 360, 383, 440 V8 Technical Specifications Specification Value CFM Rating 600 CFM Barrels 4-Barrel Choke Type Electric (12V) Flange Type Square Bore Finish Gold Dichromate Secondary Type Air Valve (Mechanical) EGR No EGR Provision Why the 1406? The electric choke on the 1406 makes cold starts effortless — just pump the gas once, turn the key, and the 12V choke element handles the rest. The AFB-style metering rod system delivers consistent air/fuel ratios without the power valve failure headaches common on competing designs. Whether it's a daily-driven Silverado, a weekend Mustang, or a restomod GMC, the 1406 is the most popular street performance carburetor for a reason. Frequently Asked Questions Q: How do I wire the electric choke? A: Connect the choke's positive terminal to a 12V ignition-switched source (key-on power only). The most reliable connection point is the ignition coil positive terminal or the fuse box IGN terminal. Do NOT connect to the alternator or a constant 12V source — the choke only needs power when the engine is running. Q: Will this fit my Ford 302? A: Yes, it fits any engine with a square bore intake manifold. For Ford 302 applications, pair with a Performer or Performer RPM intake manifold. You may need a throttle bracket adapter for Ford throttle cable compatibility. Q: What's the difference between the 1405 and 1406? A: The 1405 has a manual choke (cable-operated), while the 1406 has an electric choke. Internally, the jetting and calibration are nearly identical. Choose the 1406 if you want automatic cold-start convenience; choose the 1405 if you prefer manual control or are building a race/off-road application. Q: Do I need a calibration kit? A: The 1406 comes pre-calibrated for typical street V8 applications from sea level to approximately 4,000 feet. At higher altitudes or for modified engines with aggressive cams, a metering rod/jet calibration kit is recommended. Q: What fuel pressure is required? A: The 1406 operates best at 5.5-6.0 PSI fuel pressure. Use a quality fuel pressure regulator if your mechanical or electric pump exceeds 6.5 PSI, as excessive pressure can overpower the needle and seat. Q: Is this compatible with EGR? A: No — this is a non-EGR carburetor designed for performance applications. For off-road and racing use only where emissions equipment removal is legal. 🔗 Related Products from iFJF 1405 Performer 600 CFM Carburetor (Manual Choke) 1404 Performer 500 CFM Carburetor 1478 Electric Choke Kit for 1405/1406 📚 Helpful Installation Guides 📖 How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links 📖 iFJF 1403 Performer 500 CFM 4-Barrel Carburetor Installation Guide 📖 Related Guide Read our How to Rebuild Edelbrock 1406 & 1405 Carburetors for step-by-step rebuild instructions and kit recommendations. Installing a Performer-pattern 4-barrel? Read our iFJF 1403 Performer 500 CFM 4-Barrel Carburetor Installation Guide for the full bolt-on sequence.

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Edelbrock 1405 Performer 600 CFM Carburetor — Manual Choke, Square Bore The iFJF 1405 Performer Series Carburetor delivers 600 CFM of reliable airflow with a manual choke and classic square bore design. Built as a direct replacement for the legendary Edelbrock 1405, this carburetor is engineered for street performance and daily driving on Chevy small block and big block V8 engines including the Corvette, Silverado, GMC trucks, and 366 Demon Poly applications. Key Features 600 CFM Airflow — Optimized for 305-454 cubic inch V8 engines delivering crisp throttle response Manual Choke — Full driver control over cold-start enrichment, ideal for performance builds 4-Barrel Square Bore — Standard square bore flange fits Edelbrock Performer, Performer RPM, and stock 4-barrel intake manifolds AFB-Style Design — Tried-and-true Carter AFB architecture with no power valves to blow out Gold Dichromate Finish — Classic hot-rod look with superior corrosion resistance Two-Piece Body — Easy to tune and service without removing from the manifold Electric Choke Compatible — Can be upgraded with iFJF 1478 Electric Choke Kit (sold separately) Vehicle Compatibility Make Model Engine Notes Chevrolet Corvette, Camaro, Chevelle, Nova, Silverado, C10, Impala 305, 327, 350, 383, 396, 400, 427, 454 V8 Square bore intake required GMC Sierra, C/K1500, Jimmy, Suburban 305, 350, 396, 454 V8 Verify intake manifold flange Pontiac Firebird, Trans Am, GTO, Grand Prix 350, 400, 455 V8 Aftermarket intake recommended Oldsmobile Cutlass, 442, Delta 88 350, 403, 455 V8 Check hood clearance Technical Specifications Specification Value CFM Rating 600 CFM Barrels 4-Barrel Choke Type Manual Flange Type Square Bore Finish Gold Dichromate Secondary Type Air Valve (Mechanical) Fuel Type Gasoline EGR No EGR Provision Why Choose the iFJF 1405? The AFB-style architecture eliminates power valve failure — a common issue with Holley-style carbs. The two-piece body design allows jet and rod changes without draining fuel or removing the carburetor. Whether you're building a weekend cruiser Corvette, a street/strip Silverado, or restoring a classic GMC, the 1405's 600 CFM flow rate is the sweet spot for street-driven V8s. Frequently Asked Questions Q: Will this fit my stock intake manifold? A: This carburetor has a standard square bore flange pattern. It fits stock 4-barrel square bore intake manifolds found on most 1960s-1980s GM V8 engines. If you have a spread bore intake (Quadrajet-style), you'll need a square bore to spread bore adapter plate. Q: Can I add an electric choke later? A: Yes. The iFJF 1478 Electric Choke Kit is a direct bolt-on upgrade that converts this manual choke carburetor to electric choke operation. Check our store for the 1478 kit. Q: What's the difference between the 1405 and 1406? A: The 1405 comes with a manual choke (cable-operated), while the 1406 has an electric choke. The 1405 is preferred by performance enthusiasts who want full control over cold-start enrichment, while the 1406 is ideal for daily drivers who want set-and-forget convenience. Q: Does this carburetor come pre-tuned out of the box? A: Yes, it comes with factory baseline jetting and metering rods calibrated for 600 CFM on typical street V8 engines. Fine-tuning may be needed based on your specific engine displacement, cam profile, altitude, and exhaust setup. Q: What gaskets and hardware are included? A: The carburetor includes the mounting gasket, fuel inlet fitting, and basic hardware. We recommend purchasing a quality intake manifold gasket set separately for your specific application. Q: Is this carburetor compatible with EGR systems? A: No — this carburetor does not have an EGR provision. It is designed for non-EGR performance applications or vehicles where the EGR system has been removed. For off-road and racing use only where emissions equipment removal is legal. Q: What horsepower range does 600 CFM support? A: A properly tuned 600 CFM carburetor can support 350-450 horsepower on typical street V8 engines. For engines exceeding 450 HP, consider stepping up to a 750 CFM unit. 🔗 Related Products from iFJF 1406 Performer 600 CFM Carburetor (Electric Choke) 1404 Performer 500 CFM Carburetor (Manual Choke) 1403 Performer 500 CFM Carburetor (Electric Choke) 1478 Electric Choke Kit for 1405/1406 📚 Helpful Installation Guides 📖 How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links 📖 iFJF 1403 Performer 500 CFM 4-Barrel Carburetor Installation Guide

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1405 600 CFM Performer Carburetor — Manual Choke, 4-Barrel Square Bore The iFJF 1405 Performer carburetor is a precision-engineered 600 CFM 4-barrel square bore carburetor designed as a direct replacement and performance upgrade for the Edelbrock 1405. Ideal for small-block and mild big-block V8 engines from 350 to 450+ cubic inches, this manual choke carburetor delivers crisp throttle response, consistent fuel metering, and trouble-free operation — whether you're cruising on the street, towing, or hitting the track. Key Features 600 CFM Flow Rating: Optimized for street performance and mild race applications on 350-454ci V8 engines. Ideal airflow for dual-plane intake manifolds. Manual Choke: Driver-controlled cold-start enrichment — eliminates the complexity of electric choke wiring and provides positive choke control in all weather conditions. 4-Barrel Square Bore Design: Direct bolt-on for Edelbrock Performer, Performer RPM, and most OEM square bore intake manifolds. No adapter required. Air Valve Secondary: Vacuum-operated secondary air valve opens progressively based on engine demand — no bog, no hesitation, just smooth power delivery. No EGR Provision: Clean, simple design without EGR ports — ideal for off-road, racing, or pre-emissions vehicles. For off-road and racing use only where emissions equipment is not required. Tunable Without Disassembly: Externally adjustable idle mixture screws and easily accessible metering rods and jets enable tuning without removing the carburetor from the manifold. Technical Specifications Specification Value CFM Rating 600 CFM @ 1.5 inHg Barrel Configuration 4-Barrel, Square Bore Choke Type Manual (cable-operated) Secondary Type Vacuum-Controlled Air Valve Fuel Inlet Single 5/8"-20 UNF Throttle Bore Diameter Primary 1-7/16", Secondary 1-11/16" Mounting Flange Square Bore (5-1/8" x 5-5/8") Finish Satin Silver / Natural Aluminum Recommended Fuel Pressure 5.5 psi maximum (regulator recommended) Compatibility Guide Engine Family Displacement Application Notes Small Block Chevy 305-400 ci Excellent match for mild 350 builds with dual-plane intake Small Block Ford 289-351 ci Ideal for 302/351W street performance Big Block Chevy 396-454 ci Suitable for mild street BBC — may be slightly small for high-RPM 454+ AMC V8 304-401 ci Popular upgrade for AMC 360/401 Chrysler LA/Magnum 318-360 ci Requires square bore intake or adapter Why Choose the 1405 Manual Choke Carburetor? The manual choke design offers several advantages over automatic chokes for performance applications. You get positive, immediate choke control without waiting for an electric element to heat up — essential for engines with aggressive camshafts that need precise cold-start enrichment. The manual cable setup also eliminates a potential failure point (burned-out electric choke) and reduces electrical load on your charging system. For race cars, off-road vehicles, and hot rods where simplicity is key, the manual choke 1405 is the go-to choice. Tuning Guide Idle Mixture: Start with both idle mixture screws 1.5 turns out. Warm engine fully. Adjust each screw for highest vacuum reading, then back out 1/8 turn for best idle quality. Idle Speed: Set curb idle to 700-800 RPM (manual trans) or 650-750 RPM (auto in drive). Verify timing is set correctly before adjusting carb. Metering Rods & Jets: Factory calibration works well for most 350-400ci street engines. For altitude (>5,000 ft), step down one jet size. For high-compression builds, step up one rod size richer. Secondary Air Valve: Adjust pre-load spring tension via the set screw on the passenger side. Lighter tension = earlier secondary opening. Too light = bog. Too heavy = sluggish top end. Float Level: Fuel level should be 7/16" from the top of the float bowl with the engine idling. Adjust via the external needle & seat assembly — no bowl removal needed. Fuel Pressure: Edelbrock-style carbs are sensitive to fuel pressure. Use a regulator set to 5.5 psi maximum. Higher pressure will force the needle off the seat and flood the engine. Frequently Asked Questions Q: What's the difference between the 1405 and 1406 carburetors?A: The 1405 uses a manual choke (cable-operated), while the 1406 uses an electric choke (automatic, 12V). The 1405 is preferred for race cars, off-road vehicles, and applications where the driver wants full choke control. The 1406 is better for daily drivers and street cars where automatic cold-start convenience is desired. Q: Do I need a square bore to spread bore adapter?A: If your intake manifold is a spread bore design (Q-jet pattern), yes. If it's a square bore (Holley/Edelbrock pattern), no. Most aftermarket dual-plane intakes (Edelbrock Performer, Weiand Action Plus, etc.) are square bore and accept this carburetor directly. Q: Will this carburetor work with my stock hood?A: The 1405/1406 has a relatively low profile compared to Holley double pumpers and Dominator carbs. In most applications with a stock or mild drop-base air cleaner, hood clearance is not an issue. Measure from the intake manifold carb pad to the hood for verification. Q: What fuel pump do I need?A: A standard mechanical fuel pump (5-7 psi) with a regulator set to 5.5 psi maximum is ideal. Electric pumps must also be regulated. Do NOT exceed 6.0 psi — these carbs are highly sensitive to over-pressurization. Q: Is this carburetor emissions-legal for street use?A: This carburetor does not have EGR provisions and is intended for off-road, racing, and pre-emissions (pre-1975) vehicles. Check your local emissions regulations before installing on a street-driven vehicle. Related Products iFJF 1406 600 CFM Performer Carburetor — Electric Choke — Same carb with automatic electric choke 18-7665 Marine Electric Choke for Mercruiser — Choke assembly for marine applications Related Blog Posts Complete Guide: How to Rebuild Edelbrock 1406 and 1405 Carburetors (Step by Step) How To Rebuild Edelbrock 1406 and 1405 Carburetors | Rebuild Kit Links 1965-1967 Mustang 200ci Inline-6 Carburetor Replacement Guide

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Product Overview The iFJF 1404 Performer 500 CFM 4-barrel carburetor is the manual-choke version of the 500 CFM square-bore Performer — the same calibration with a cable-operated choke and no electrical hookup. Edelbrock calibrates the Performer Series for small-cubic-inch engines (305 cu in and smaller Chevrolet, 302 cu in and smaller Ford) and for dual-quad applications such as the C-26 and F-28. The 4150-pattern flange bolts straight to a square-bore intake, and the two-piece aluminum body is tunable without removal. Key Features ✓ 500 CFM Calibration For Small-Cubic-Inch V8s: Factory-calibrated for 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford, plus dual-quad C-26 / F-28 applications. ✓ Manual Cable Choke: Cable-operated choke gives full control of cold-start enrichment with no 12V wiring to run. ✓ Vacuum Air-Valve Secondary: Edelbrock's Performer Series uses a vacuum-operated air valve secondary for progressive part-throttle response. ✓ Tunable Without Removing It: Metering rods, jets and the step-up spring can be changed on the engine — no fuel draining. ✓ Two-Piece Aluminum Body: The lightweight all-aluminum, two-piece body resists warping and is compatible with blended pump fuel. ✓ Bolt-On 4150 Square-Bore Flange: Fits square-bore intakes directly; timed and full vacuum ports are included for ignition advance. Vehicle Compatibility Direct Fit Any 4150 square-bore intake manifold Calibrated For 305 cu in and smaller Chevrolet; 302 cu in and smaller Ford Dual-Quad Edelbrock C-26, F-28 and Street Tunnel Ram manifolds Manifold Match Edelbrock Performer / Performer EPS, or similar design Adapter Required Spread-bore Quadrajet or Chrysler Thermoquad — Edelbrock #2696 / #2697 Not For Computer-controlled applications (some 1981+ GM Q-Jet, some 1981+ Ford AOD) Technical Specifications CFM Rating 500 CFM @ 1.5 inHg Barrel Configuration 4-Barrel, Square Bore (4150 pattern) Choke Type Manual (cable-operated) Secondary Type Vacuum-Controlled Air Valve Finish Satin Aluminum Bore Diameter Primary 1.44" / Secondary 1.69" Main Venturi Diameter 1.19" Body Height 3.25" Mounting Flange Square Bore, 4150 pattern Material Aluminum (two-piece body) Vacuum Ports Timed and full vacuum ports included for ignition advance EGR Provisions None Fuel Type Gasoline — not calibrated for alcohol, race fuel or E85 Fuel Pressure 6.5 psi maximum; set an adjustable regulator to 5.5 psi Recommended Displacement 305 cu in and smaller Chevrolet; 302 cu in and smaller Ford; dual-quad C-26 / F-28 Included Square-bore base gasket, air horn gasket, air cleaner stud, 2 vacuum caps, vacuum tee, 1/4" NPT pipe plug, throttle cable ball-end stud with nut and star washer. Carburetor studs sold separately (Edelbrock #8008 or #8024). Why Choose iFJF? Quality Assurance: Every product undergoes rigorous quality inspection before shipping. USA-Based Inventory: Products ship from our US warehouse — no waiting for international freight. Expert Support: Our team knows automotive, truck, and RV parts. Real answers from real people. Fair Pricing: Premium quality without the premium markup — direct value to you. Hassle-Free Returns: 30-day return policy. If it doesn't fit or meet your expectations, we'll make it right. Backed by ISO 9001:2015 and IATF 16949:2016 quality management system certifications. Installation Tips Check fuel pressure before the first start — Edelbrock's limit is 6.5 psi, with a regulator set to 5.5 psi Fit a new square-bore base gasket and air horn gasket; Edelbrock's warranty is void if dirt found in the carburetor is traced to a missing filter Tighten the mounting nuts evenly over several steps — overtightening can distort the two-piece aluminum body Route the manual choke cable with enough slack for full travel, then set the fast-idle cam Cap every unused vacuum port using the supplied vacuum caps; plug an unused rear port with the supplied 1/4" NPT pipe plug Check for fuel and vacuum leaks before the first road test Frequently Asked Questions Q: Will this carburetor fit my engine?A: The 1404 is a square-bore carburetor with a 4150-pattern flange, so it bolts directly to any square-bore intake manifold. It is calibrated for small-cubic-inch engines — 305 cu in and smaller Chevrolet, 302 cu in and smaller Ford — and for dual-quad applications such as the Edelbrock C-26, F-28 and Street Tunnel Ram. A spread-bore intake such as a Quadrajet or Chrysler Thermoquad needs Edelbrock adapter #2696 (or adapter-and-fuel-line kit #2697). It is not for computer-controlled applications, which includes some 1981-and-later GM vehicles with a Q-Jet carburetor and some 1981-and-later Ford vehicles with an AOD transmission. Q: Is 500 CFM enough for my engine?A: Edelbrock builds the Performer Series around small-cubic-inch engines: this 500 CFM version for 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford, and 600 CFM (such as #1406) for larger or higher-revving combinations. Match the CFM rating to the engine rather than fitting the biggest number available. Q: What fuel pressure does this carburetor need?A: Per Edelbrock's installation instructions, do not use more than 6.5 psi fuel pressure — excessive pressure causes flooding. The owner's manual adds that pressure at idle should not exceed 6.0 psi, that an adjustable regulator should be set to 5.5 psi, and that pressure should not drop below 2.0 psi at high rpm and wide-open throttle. A regulator such as Edelbrock #8190 is used if the pump runs higher. Q: Do I need an adapter or a throttle linkage kit?A: No adapter is needed on a square-bore intake. A spread-bore Quadrajet or Chrysler Thermoquad intake needs Edelbrock adapter #2696 or kit #2697. Use a cable-operated manual choke with enough slack for full travel, then set the fast-idle cam. The throttle cable ball-end stud is removable and is installed in the position your linkage requires; 1977-and-later Chevrolet applications use the Edelbrock #8009 throttle cable adapter stud. Ford vehicles with an automatic transmission need Throttle Lever Kit #1483, Chrysler vehicles with an automatic need Throttle Lever Kit #1481, and Ford cable linkage may need a Throttle Cable Plate Kit (#1490 for 289-302, #1491 for 351-W, #1493 for 351-C and 351-M/400, #1495 for 429/460). Q: What fuel can I run in it?A: Gasoline only. Edelbrock states that Performer Series carburetors are not calibrated for or compatible with alcohol, race fuel or E85 pump fuel, and that using those fuels will damage the carburetor and other fuel system components. Blended pump fuel is acceptable up to about 10% ethanol (E10); above that a richer calibration may be required. Q: Can I change the jets and metering rods myself?A: Yes. The metering rods, jets and step-up spring can be changed with the carburetor still on the engine — no removal and no draining of the fuel bowl. The carburetor ships factory-calibrated with orange (5 in-Hg) step-up springs, so start from the factory setting and change one step at a time. Related Products Related Blog Posts 📖 Related Guide Installing a Performer-pattern 4-barrel? Read our iFJF 1403 Performer 500 CFM 4-Barrel Carburetor Installation Guide for the full bolt-on sequence.

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Product Overview The iFJF 1403 Performer 500 CFM 4-barrel carburetor is a square-bore, electric-choke replacement for classic small-block V8 builds such as the Plymouth Barracuda and Chevy Camaro. Edelbrock calibrates the Performer Series for small-cubic-inch engines — 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford — and the 4150-pattern flange bolts straight to a square-bore intake. The two-piece aluminum body holds its tune once set, and no EGR provisions are used. Key Features ✓ 500 CFM Calibration For Small-Cubic-Inch V8s: Factory-calibrated for 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford, plus dual-quad C-26 / F-28 applications. ✓ Electric Choke: A switched 12V feed gives clean cold starts without running a manual choke cable into the cabin. ✓ Vacuum Air-Valve Secondary: Edelbrock's Performer Series uses a vacuum-operated air valve secondary for progressive part-throttle response. ✓ Tunable Without Removing It: Metering rods, jets and the step-up spring can be changed on the engine — no fuel draining. ✓ Two-Piece Aluminum Body: The lightweight all-aluminum, two-piece body resists warping and is compatible with blended pump fuel. ✓ Bolt-On 4150 Square-Bore Flange: Fits square-bore intakes directly; timed and full vacuum ports are included for ignition advance. Vehicle Compatibility Direct Fit Any 4150 square-bore intake manifold Common Builds Plymouth Barracuda and Chevy Camaro small-block V8s Calibrated For 305 cu in and smaller Chevrolet; 302 cu in and smaller Ford Dual-Quad Edelbrock C-26, F-28 and Street Tunnel Ram manifolds Adapter Required Spread-bore Quadrajet or Chrysler Thermoquad — Edelbrock #2696 / #2697 Not For Computer-controlled applications (some 1981+ GM Q-Jet, some 1981+ Ford AOD) Technical Specifications CFM Rating 500 CFM @ 1.5 inHg Barrel Configuration 4-Barrel, Square Bore (4150 pattern) Choke Type Electric (switched 12V) Secondary Type Vacuum-Controlled Air Valve Finish Satin Aluminum Bore Diameter Primary 1.44" / Secondary 1.69" Main Venturi Diameter 1.19" Body Height 3.25" Mounting Flange Square Bore, 4150 pattern Material Aluminum (two-piece body) Vacuum Ports Timed and full vacuum ports included for ignition advance EGR Provisions None Fuel Type Gasoline — not calibrated for alcohol, race fuel or E85 Fuel Pressure 6.5 psi maximum; set an adjustable regulator to 5.5 psi Recommended Displacement 305 cu in and smaller Chevrolet; 302 cu in and smaller Ford; dual-quad C-26 / F-28 Included Square-bore base gasket, air horn gasket, air cleaner stud, red choke positive wire and black choke ground wire, 2 vacuum caps, vacuum tee, 1/4" NPT pipe plug, throttle cable ball-end stud with nut and star washer. Carburetor studs sold separately (Edelbrock #8008 or #8024). Why Choose iFJF? Quality Assurance: Every product undergoes rigorous quality inspection before shipping. USA-Based Inventory: Products ship from our US warehouse — no waiting for international freight. Expert Support: Our team knows automotive, truck, and RV parts. Real answers from real people. Fair Pricing: Premium quality without the premium markup — direct value to you. Hassle-Free Returns: 30-day return policy. If it doesn't fit or meet your expectations, we'll make it right. Backed by ISO 9001:2015 and IATF 16949:2016 quality management system certifications. Installation Tips Check fuel pressure before the first start — Edelbrock's limit is 6.5 psi, with a regulator set to 5.5 psi Fit a new square-bore base gasket and air horn gasket; Edelbrock's warranty is void if dirt found in the carburetor is traced to a missing filter Tighten the mounting nuts evenly over several steps — overtightening can distort the two-piece aluminum body Run the choke positive lead to a switched 12V source (Run position only) and ground the black wire to the carburetor body Cap every unused vacuum port using the supplied vacuum caps; plug an unused rear port with the supplied 1/4" NPT pipe plug Check for fuel and vacuum leaks before the first road test Frequently Asked Questions Q: Will this carburetor fit my engine?A: The 1403 is a square-bore carburetor with a 4150-pattern flange, so it bolts directly to any square-bore intake manifold. It is calibrated for small-cubic-inch engines — 305 cu in and smaller Chevrolet, 302 cu in and smaller Ford — and for dual-quad applications such as the Edelbrock C-26, F-28 and Street Tunnel Ram. A spread-bore intake such as a Quadrajet or Chrysler Thermoquad needs Edelbrock adapter #2696 (or adapter-and-fuel-line kit #2697). It is not for computer-controlled applications, which includes some 1981-and-later GM vehicles with a Q-Jet carburetor and some 1981-and-later Ford vehicles with an AOD transmission. Q: Is 500 CFM enough for my engine?A: Edelbrock builds the Performer Series around small-cubic-inch engines: this 500 CFM version for 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford, and 600 CFM (such as #1406) for larger or higher-revving combinations. Match the CFM rating to the engine rather than fitting the biggest number available. Q: What fuel pressure does this carburetor need?A: Per Edelbrock's installation instructions, do not use more than 6.5 psi fuel pressure — excessive pressure causes flooding. The owner's manual adds that pressure at idle should not exceed 6.0 psi, that an adjustable regulator should be set to 5.5 psi, and that pressure should not drop below 2.0 psi at high rpm and wide-open throttle. A regulator such as Edelbrock #8190 is used if the pump runs higher. Q: Do I need an adapter or a throttle linkage kit?A: No adapter is needed on a square-bore intake. A spread-bore Quadrajet or Chrysler Thermoquad intake needs Edelbrock adapter #2696 or kit #2697. Connect the electric choke to a switched 12V source (Run position only) and ground it to the carburetor body. The throttle cable ball-end stud is removable and is installed in the position your linkage requires; 1977-and-later Chevrolet applications use the Edelbrock #8009 throttle cable adapter stud. Ford vehicles with an automatic transmission need Throttle Lever Kit #1483, Chrysler vehicles with an automatic need Throttle Lever Kit #1481, and Ford cable linkage may need a Throttle Cable Plate Kit (#1490 for 289-302, #1491 for 351-W, #1493 for 351-C and 351-M/400, #1495 for 429/460). Q: What fuel can I run in it?A: Gasoline only. Edelbrock states that Performer Series carburetors are not calibrated for or compatible with alcohol, race fuel or E85 pump fuel, and that using those fuels will damage the carburetor and other fuel system components. Blended pump fuel is acceptable up to about 10% ethanol (E10); above that a richer calibration may be required. Q: Can I change the jets and metering rods myself?A: Yes. The metering rods, jets and step-up spring can be changed with the carburetor still on the engine — no removal and no draining of the fuel bowl. The carburetor ships factory-calibrated with orange (5 in-Hg) step-up springs, so start from the factory setting and change one step at a time. Related Products Related Blog Posts

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Product Overview The iFJF 1403 Performer 500 CFM 4-barrel carburetor is a square-bore, electric-choke replacement for a worn Quadrajet or a factory EFI system that will not behave. Edelbrock calibrates the Performer Series for small-cubic-inch engines — 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford — and the 4150-pattern flange bolts straight to a square-bore intake. The two-piece aluminum body delivers crisp throttle response and can be re-jetted without removing the carburetor. This is the golden-finish version, with no EGR provisions. Key Features ✓ 500 CFM Calibration For Small-Cubic-Inch V8s: Factory-calibrated for 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford, plus dual-quad C-26 / F-28 applications. ✓ Electric Choke: A switched 12V feed gives clean cold starts without running a manual choke cable into the cabin. ✓ Vacuum Air-Valve Secondary: Edelbrock's Performer Series uses a vacuum-operated air valve secondary for progressive part-throttle response. ✓ Tunable Without Removing It: Metering rods, jets and the step-up spring can be changed on the engine — no fuel draining. ✓ Two-Piece Aluminum Body: The lightweight all-aluminum, two-piece body resists warping and is compatible with blended pump fuel. ✓ Bolt-On 4150 Square-Bore Flange: Fits square-bore intakes directly; timed and full vacuum ports are included for ignition advance. Vehicle Compatibility Direct Fit Any 4150 square-bore intake manifold Calibrated For 305 cu in and smaller Chevrolet; 302 cu in and smaller Ford Dual-Quad Edelbrock C-26, F-28 and Street Tunnel Ram manifolds Manifold Match Edelbrock Performer / Performer EPS, or similar design Adapter Required Spread-bore Quadrajet or Chrysler Thermoquad — Edelbrock #2696 / #2697 Not For Computer-controlled applications (some 1981+ GM Q-Jet, some 1981+ Ford AOD) Technical Specifications CFM Rating 500 CFM @ 1.5 inHg Barrel Configuration 4-Barrel, Square Bore (4150 pattern) Choke Type Electric (switched 12V) Secondary Type Vacuum-Controlled Air Valve Finish Golden Bore Diameter Primary 1.44" / Secondary 1.69" Main Venturi Diameter 1.19" Body Height 3.25" Mounting Flange Square Bore, 4150 pattern Material Aluminum (two-piece body) Vacuum Ports Timed and full vacuum ports included for ignition advance EGR Provisions None Fuel Type Gasoline — not calibrated for alcohol, race fuel or E85 Fuel Pressure 6.5 psi maximum; set an adjustable regulator to 5.5 psi Recommended Displacement 305 cu in and smaller Chevrolet; 302 cu in and smaller Ford; dual-quad C-26 / F-28 Included Square-bore base gasket, air horn gasket, air cleaner stud, red choke positive wire and black choke ground wire, 2 vacuum caps, vacuum tee, 1/4" NPT pipe plug, throttle cable ball-end stud with nut and star washer. Carburetor studs sold separately (Edelbrock #8008 or #8024). Why Choose iFJF? Quality Assurance: Every product undergoes rigorous quality inspection before shipping. USA-Based Inventory: Products ship from our US warehouse — no waiting for international freight. Expert Support: Our team knows automotive, truck, and RV parts. Real answers from real people. Fair Pricing: Premium quality without the premium markup — direct value to you. Hassle-Free Returns: 30-day return policy. If it doesn't fit or meet your expectations, we'll make it right. Backed by ISO 9001:2015 and IATF 16949:2016 quality management system certifications. Installation Tips Check fuel pressure before the first start — Edelbrock's limit is 6.5 psi, with a regulator set to 5.5 psi Fit a new square-bore base gasket and air horn gasket; Edelbrock's warranty is void if dirt found in the carburetor is traced to a missing filter Tighten the mounting nuts evenly over several steps — overtightening can distort the two-piece aluminum body Run the choke positive lead to a switched 12V source (Run position only) and ground the black wire to the carburetor body Cap every unused vacuum port using the supplied vacuum caps; plug an unused rear port with the supplied 1/4" NPT pipe plug Check for fuel and vacuum leaks before the first road test Frequently Asked Questions Q: Will this carburetor fit my engine?A: The 1403 is a square-bore carburetor with a 4150-pattern flange, so it bolts directly to any square-bore intake manifold. It is calibrated for small-cubic-inch engines — 305 cu in and smaller Chevrolet, 302 cu in and smaller Ford — and for dual-quad applications such as the Edelbrock C-26, F-28 and Street Tunnel Ram. A spread-bore intake such as a Quadrajet or Chrysler Thermoquad needs Edelbrock adapter #2696 (or adapter-and-fuel-line kit #2697). It is not for computer-controlled applications, which includes some 1981-and-later GM vehicles with a Q-Jet carburetor and some 1981-and-later Ford vehicles with an AOD transmission. Q: Is 500 CFM enough for my engine?A: Edelbrock builds the Performer Series around small-cubic-inch engines: this 500 CFM version for 305 cu in and smaller Chevrolet and 302 cu in and smaller Ford, and 600 CFM (such as #1406) for larger or higher-revving combinations. Match the CFM rating to the engine rather than fitting the biggest number available. Q: What fuel pressure does this carburetor need?A: Per Edelbrock's installation instructions, do not use more than 6.5 psi fuel pressure — excessive pressure causes flooding. The owner's manual adds that pressure at idle should not exceed 6.0 psi, that an adjustable regulator should be set to 5.5 psi, and that pressure should not drop below 2.0 psi at high rpm and wide-open throttle. A regulator such as Edelbrock #8190 is used if the pump runs higher. Q: Do I need an adapter or a throttle linkage kit?A: No adapter is needed on a square-bore intake. A spread-bore Quadrajet or Chrysler Thermoquad intake needs Edelbrock adapter #2696 or kit #2697. Connect the electric choke to a switched 12V source (Run position only) and ground it to the carburetor body. The throttle cable ball-end stud is removable and is installed in the position your linkage requires; 1977-and-later Chevrolet applications use the Edelbrock #8009 throttle cable adapter stud. Ford vehicles with an automatic transmission need Throttle Lever Kit #1483, Chrysler vehicles with an automatic need Throttle Lever Kit #1481, and Ford cable linkage may need a Throttle Cable Plate Kit (#1490 for 289-302, #1491 for 351-W, #1493 for 351-C and 351-M/400, #1495 for 429/460). Q: What fuel can I run in it?A: Gasoline only. Edelbrock states that Performer Series carburetors are not calibrated for or compatible with alcohol, race fuel or E85 pump fuel, and that using those fuels will damage the carburetor and other fuel system components. Blended pump fuel is acceptable up to about 10% ethanol (E10); above that a richer calibration may be required. Q: Can I change the jets and metering rods myself?A: Yes. The metering rods, jets and step-up spring can be changed with the carburetor still on the engine — no removal and no draining of the fuel bowl. The carburetor ships factory-calibrated with orange (5 in-Hg) step-up springs, so start from the factory setting and change one step at a time. Related Products Related Blog Posts 📖 Related Guide Installing a Performer-pattern 4-barrel? Read our iFJF 1403 Performer 500 CFM 4-Barrel Carburetor Installation Guide for the full bolt-on sequence.

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Product Overview The 1400 Performer 600 CFM 4-Barrel Carburetor for GM Chevy V8 delivers exceptional fuel atomization and throttle response for your classic American V8. Precision-machined from high-grade aluminum with a durable satin finish, this carburetor is factory-calibrated for near bolt-on installation. Key Features ✓ Precision Tuned: Factory-calibrated fuel circuits deliver crisp throttle response and consistent idle out of the box. ✓ Durable Construction: Die-cast aluminum body with chemical-resistant finish withstands ethanol-blended fuels and prevents corrosion. ✓ Bolt-On Installation: Direct replacement for factory intake manifold bolt pattern — gaskets and mounting hardware included. ✓ Tunable Design: Externally adjustable idle mixture and curb idle speed screws allow fine-tuning for your specific application. ✓ Classic Compatibility: Square bore flange pattern fits most aftermarket and factory 4-barrel intake manifolds. Vehicle Compatibility Make Model Year Range Engine Chevy Compatible Models Check Fitment Check Fitment ⚠️ Please verify fitment for your specific vehicle using the compatibility checker above. Contact us with your VIN for confirmation. Technical Specifications Barrels 4-Barrel Square Bore CFM Rating 500-750 CFM (see title) Choke Type Electric or Manual (see title) Material Die-Cast Aluminum Fuel Type Gasoline Flange Square Bore Standard Pattern Why Choose iFJF? Quality Assurance: Every product undergoes rigorous quality inspection before shipping. USA-Based Inventory: Products ship from our US warehouse — no waiting for international freight. Expert Support: Our team knows diesel, automotive, and RV parts. Real answers from real people. Fair Pricing: Premium quality without the premium markup — direct value to you. Hassle-Free Returns: 30-day return policy. If it doesn't fit or meet your expectations, we'll make it right. Installation Tips Disconnect battery before removal Label all vacuum lines for easy reconnection Use new base gasket — do not reuse Set idle mixture screws to baseline (1.5 turns out) Check for vacuum leaks after installation Frequently Asked Questions Q: Will this fit my intake manifold?A: This carburetor has a standard square bore flange pattern that fits most 4-barrel aftermarket and factory intake manifolds. Please check your manifold bolt pattern. Q: Does it come pre-tuned?A: Yes, each carburetor is factory-calibrated for a baseline tune on a typical mild V8 application. Fine-tuning (idle mixture, idle speed) may be needed for your specific engine combination. Q: What fuel pressure is recommended?A: We recommend 5-7 PSI fuel pressure at the carburetor inlet. Use a quality fuel pressure regulator if your pump exceeds this range. Q: Is this compatible with ethanol-blended fuels?A: Yes, the fuel-resistant coatings and seals are compatible with fuels containing up to 10% ethanol (E10). For higher ethanol blends, we recommend additional fuel system upgrades. Q: Do I need an adapter plate?A: This carburetor fits standard square bore intake manifolds. If you have a spread bore manifold, you will need a square-to-spread bore adapter (sold separately). Related Products Related Blog Posts

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Comprehensive Carburetor Repair Kit for Mercury Marine Engines The iFJF 1395-97611 carburetor repair kit provides a complete solution for rebuilding Mercury Marine carburetors across multiple engine platforms. This kit replaces all critical wear components — gaskets, seals, o-rings, inlet needle & seat — restoring precise fuel metering and eliminating common symptoms like fuel leaks, hard starting, and poor idle. Engineered to match OEM specifications, the kit replaces Mercury/Mariner part numbers 1395-9645, 1395-9761, 1395-9377, 1395-9179, 1395-9803, 1395-9725, and 1395-811357. Key Features Wide Compatibility: Service multiple Mercury Marine engine families with one kit — covers broad range of OEM part numbers. Complete Component Set: Includes float bowl gasket, inlet needle & seat, body gaskets, mixture screw o-ring, welch plugs, and all required seals. Ethanol-Resistant Materials: All rubber and composite components formulated for E10 fuel compatibility — resists swelling, hardening, and deterioration. OEM-Spec Precision: Needle & seat assemblies machined to exact factory tolerances for consistent float height and leak-free fuel control. Professional Grade: Same quality components used by marine service centers — ideal for DIY rebuilds and shop use alike. Cross-Reference / Interchange Brand Part Number Mercury / Mariner OEM 1395-97611, 1395-9761 Mercury OEM (Alternate) 1395-9645, 1395-9377, 1395-9179 Mercury OEM (Additional) 1395-9803, 1395-9725, 1395-811357 Technical Specifications Application: Mercury Marine carbureted engines (verify fitment with serial number) Carburetor Type: Float bowl / side bowl design Kit Contents: Float bowl gasket, inlet needle & seat, body gaskets, o-rings, welch plugs Material: Ethanol-resistant Buna-N / Nitrile / composite gasket Quantity: 1 complete kit (services 1 carburetor) Why Rebuild Your Mercury Carburetor? Mercury Marine carburetors are precision fuel metering devices that degrade over time — especially with today's ethanol-blended fuels. The soft components (gaskets, seals, needle valve) are the first to fail, while the aluminum body remains perfectly functional. Rebuilding with the iFJF 1395-97611 kit restores like-new performance at a fraction of the cost of a replacement carburetor assembly. Frequently Asked Questions Q: How do I verify this kit fits my Mercury engine?A: Check the OEM part number stamped on your existing carburetor or in your engine's service manual. This kit covers multiple 1395-series part numbers. Contact us with your engine serial number for confirmation. Q: Does this fit Mercruiser sterndrive engines?A: This kit is designed for Mercury Marine outboard carburetors. Some Mercruiser sterndrive applications may use compatible carburetors — verify by your carburetor's OEM number. Q: What's included vs. what I need to source separately?A: The kit includes all soft components: gaskets, seals, o-rings, needle & seat. The float, jets, and carburetor body are NOT included — these are typically reusable unless damaged. Q: Can I rebuild multiple carburetors with one kit?A: No. One kit services one carburetor. If your engine has 2, 3, or 4 carburetors, order the corresponding number of kits for a complete rebuild. Q: How long does a rebuild take?A: Budget 1-2 hours per carburetor for a thorough cleaning and rebuild. Multi-carb engines will take proportionally longer. Related Blog Posts Marine Fuel Water Separator Guide Best Water Separator Fuel Filter for Marine Engines 📖 Related Guide: Mercruiser 4.3L V6 Marine Carburetor Replacement Guide

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Carburetor Repair Kit for Kohler CH/CV/SV Series Engines — Walbro LMK Restore your Kohler engine's performance with this complete carburetor overhaul kit from iFJF Direct. Designed for Kohler Command, Courage, and SV series engines equipped with Walbro LMK carburetors, this kit includes every gasket, seal, and diaphragm needed for a professional-quality rebuild — plus a new spark plug. Key Features Complete Overhaul Kit: Includes all carburetor gaskets, O-rings, fuel pump diaphragm, inlet needle and seat, float bowl gasket, and a new spark plug for a full tune-up. Walbro LMK Carburetor Compatible: Precision-cut gaskets and diaphragms match the Walbro LMK carburetor design exactly — no trimming or modification required. Broad Kohler Compatibility: Fits Kohler Command CH11-CH16, Courage CV11-CV16 and CV460-CV493, and SV591/SV600 series engines found on major lawn and garden equipment brands. Ethanol-Resistant Materials: Gaskets and diaphragms are manufactured from modern materials that resist degradation from ethanol-blended fuels — a common cause of OEM diaphragm failure. Restores Reliable Operation: Fixes hard starting, surging, stalling, and fuel leaks caused by degraded gaskets, hardened diaphragms, and worn needle valves. Compatibility Engine Series Models Carburetor Type Kohler Command CH11, CH12.5, CH13, CH14, CH15, CH16 Walbro LMK Kohler Courage CV11, CV12.5, CV13, CV14, CV15, CV16, CV460, CV490, CV491, CV492, CV493 Walbro LMK Kohler SV Series SV591, SV600 Walbro LMK Specifications Specification Value Kit Type Carburetor overhaul/rebuild kit Carburetor Compatibility Walbro LMK with fuel pump Replaces Part # 1275703-S Includes Spark Plug Yes Application Lawn tractors, zero-turn mowers, equipment Why Choose iFJF Direct? Our rebuild kits use premium ethanol-resistant gasket materials that won't swell or degrade like older OEM materials. Every kit is complete — no running to the parts store mid-rebuild. Satisfaction guaranteed. Frequently Asked Questions Q: Which Kohler engines does this kit fit?A: This kit fits Kohler Command (CH11-16), Courage (CV11-16, CV460-493), and SV (SV591, SV600) series engines equipped with Walbro LMK carburetors. These are commonly found on lawn tractors, zero-turn mowers, and small construction equipment.Q: What's included in the kit?A: The kit includes all gaskets, O-rings, the fuel pump diaphragm, needle and seat, float bowl gasket, and a new spark plug — everything needed for a complete Walbro LMK carburetor overhaul.Q: What are signs my carburetor needs a rebuild?A: Common symptoms include hard starting, surging at idle or under load, fuel leaks from the carburetor, black smoke from the exhaust (rich condition), and engine stalling after starting.Q: How difficult is a Kohler carb rebuild?A: For someone with basic mechanical skills, a Walbro LMK carburetor rebuild takes about 45-90 minutes. The key is keeping parts organized, cleaning all passages thoroughly, and setting the float height correctly.Q: Do I need any special tools?A: Basic hand tools are sufficient — screwdrivers, needle-nose pliers, and a clean work surface. Carburetor cleaner spray is highly recommended for cleaning passages and removing varnish deposits. Order your rebuild kit today and get your Kohler engine running like new. Free shipping on orders $50+.

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Intake Manifold Boot for 2004-2009 Polaris Ranger & Sportsman 700 Restore your Polaris 700's performance with this OEM-spec intake manifold boot from iFJF Direct. Designed as a direct replacement for Polaris part number 1253527, this throttle body adapter boot seals the connection between your throttle body and intake manifold, preventing vacuum leaks that cause rough running, stalling, and power loss. Key Features Direct OEM Replacement: Replaces Polaris part number 1253527 with exact dimensions and mounting points. Crosses to R09WH68, R07RF68, R08WH68, A07MH68, A08TN68, and more. OEM-Spec Rubber Compound: Manufactured from heat-resistant, flexible rubber that withstands engine bay temperatures, vibration, and repeated throttle body movement without cracking. Prevents Vacuum Leaks: Cracked or hardened intake boots are a common cause of lean running conditions, rough idle, and hard starting on Polaris 700 engines. This fresh boot restores proper air-fuel mixture. Perfect Fit: Precision-molded to match the throttle body and intake manifold flanges on 2004-2009 Ranger 700 and Sportsman 700 models. Restores Engine Performance: Eliminate unmetered air entering the intake and restore crisp throttle response and reliable idle. Compatibility Make Model Years Engine Polaris Ranger 700 4x4 2004-2009 700cc EFI/Carb Polaris Sportsman 700 4x4 2004-2009 700cc EFI/Carb Specifications Specification Value Part Number 1253527 Material Heat-resistant rubber Application Throttle body to intake manifold Cross References R09WH68, R07RF68, R08WH68, A07MH68, A08TN68, R08RF68, R06RF68, A04CH68, R06RD68, A05MH68, A06MH68 Why Choose iFJF Direct? Our intake boots are molded from premium rubber compounds that resist the heat cycling and flexing that cause OEM boots to crack over time. Every boot is inspected for proper fit and material integrity. Satisfaction guaranteed. Frequently Asked Questions Q: What models does this intake boot fit?A: This intake manifold boot fits 2004-2009 Polaris Ranger 700 4x4 and Sportsman 700 4x4 models. It replaces OEM part number 1253527 and crosses to part numbers R09WH68, R07RF68, R08WH68, and others.Q: What are the symptoms of a bad intake boot?A: Cracked or torn intake boots cause vacuum leaks that lead to rough idle, stalling, hard starting, loss of power, and lean-running conditions. If your Polaris 700 is running poorly, inspect the intake boot for cracks.Q: Is this made of rubber or silicone?A: This is an OEM-spec rubber intake boot designed to match the flexibility and durability of the original Polaris part. It withstands engine heat, vibration, and flexing during throttle operation.Q: Do I need to replace gaskets too?A: We recommend replacing the intake gaskets when installing a new boot. Old gaskets can compress and fail to seal properly with the new boot, potentially causing vacuum leaks.Q: How difficult is installation?A: Installation is moderate — the throttle body, air box, and intake components must be removed to access the boot. Basic hand tools and 1-2 hours of time. A service manual is recommended. Order today and get your Polaris 700 running right again. Free shipping on orders $50+.

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34 PICT-3 Carburetor for 1971-1979 VW Beetle & Super Beetle — 1600cc Dual Port Restore your classic Volkswagen's performance with this 34 PICT-3 reproduction carburetor from iFJF Direct. Precision-engineered for the 1600cc dual port air-cooled engine, this carburetor delivers the smooth idle, crisp throttle response, and reliable cold starts your vintage VW deserves. Key Features Exact 34 PICT-3 Reproduction: Manufactured to replicate the original Solex 34 PICT-3 specifications — bolt pattern, venturi sizing, and jetting match OEM specifications for the 1600cc dual port engine. 12V Electric Choke: Pre-installed automatic electric choke ensures reliable cold starts. Connect to a switched 12V ignition source for hands-free warm-up enrichment. Improved Throttle Response: Precision-machined throttle shaft and venturi provide crisp, immediate throttle response — a noticeable upgrade over worn 50-year-old original carbs. Complete Ready-to-Install: Arrives fully assembled with electric choke, mounting gasket, and baseline adjustments set for immediate startup and driving. Classic VW Compatibility: Fits 1971-1979 Beetle, Super Beetle, 1973-1974 Thing, and 1971-1974 Karmann Ghia with 1600cc dual port engines. Compatibility Make Model Years Engine Volkswagen Beetle 1971-1979 1600cc Dual Port Volkswagen Super Beetle 1971-1979 1600cc Dual Port Volkswagen Thing (Type 181) 1973-1974 1600cc Dual Port Volkswagen Karmann Ghia 1971-1974 1600cc Dual Port Specifications Specification Value Carburetor Type 34 PICT-3 (Solex reproduction) Choke Type 12V Electric (automatic) Engine 1600cc Dual Port Air-Cooled Replaces Part # 113129031K, 34PICT-3 Barrels Single barrel, progressive Why Choose iFJF Direct? Our 34 PICT-3 reproduction is built to tight tolerances using quality materials that stand up to modern ethanol-blended fuels. Every unit is inspected before shipping. Satisfaction guaranteed. Frequently Asked Questions Q: Will this fit my VW Beetle?A: This 34 PICT-3 carburetor fits 1971-1979 Volkswagen Beetle and Super Beetle with the 1600cc dual port engine. It also fits 1973-1974 VW Thing and 1971-1974 VW Karmann Ghia with the same engine configuration.Q: Is this a genuine Solex carburetor?A: This is a high-quality reproduction of the Solex 34 PICT-3 carburetor, manufactured to OEM specifications. It provides the same fit, function, and performance as the original at a more accessible price point.Q: Does it come with the electric choke?A: Yes — this carburetor includes the 12V electric choke assembly pre-installed. Simply connect the choke wire to a 12V switched ignition source for automatic cold-start enrichment.Q: Is it pre-adjusted out of the box?A: The carburetor comes with baseline settings that should allow the engine to start and run. Fine-tuning of idle speed, idle mixture, and choke adjustment will be needed for optimal performance on your specific engine.Q: What gaskets are included?A: The carburetor includes the base gasket for mounting to the intake manifold. We recommend also replacing your intake manifold gaskets and fuel line during installation for best results. Order today and get your classic VW running right. Free shipping on orders $50+.

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