Description
iFJF 1405 600 CFM Performer Carburetor — Manual Choke, 4-Barrel Square Bore, No EGR
The iFJF 1405 Performer Carburetor delivers 600 CFM in a manual choke configuration — the preferred choice for racers and purists who want complete control over cold-start enrichment. A direct replacement for the Edelbrock 1405, this carburetor features a two-piece all-aluminum body, tunable metering rods you can change without removing the carb, and no power valve to blow out on backfire. Built for small-block and mild big-block engines running a square-bore intake.
Key Features
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600 CFM Flow Rating: Ideal for street and mild-strip V8s from 305 to 402 cubic inches. Mechanical secondary for predictable, linear throttle response — no vacuum-secondary lag.
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Manual Choke: Cable-operated choke gives you full control over cold-start mixtures. Preferred by builders who want simplicity — no wiring, no electric choke housing to fail, one less circuit to troubleshoot.
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All-Aluminum Two-Piece Construction: Lighter, cooler-running, and warpage-resistant. Two-piece body makes jet changes and float adjustments fast and clean.
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No Power Valve: Metering rods replace the fragile power valve found in competing designs. Engine backfire won't rupture a diaphragm or flood your engine.
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No EGR Provision: Clean, emissions-free design for pre-smog and off-road applications — no EGR port to cap, no vacuum routing headaches.
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Complete Kit: Carburetor, square-bore base gasket, horn gasket, air cleaner stud, 2 fuel filters, 4 clamps, fuel line, and all necessary mounting hardware.
Compatibility
This 4-barrel square-bore carburetor fits square-bore intake manifolds including:
- Edelbrock Performer EPS
- Edelbrock Performer RPM
- Edelbrock RPM Air Gap
- Edelbrock Torker II
- Any aftermarket square-bore manifold with standard Holley/Edelbrock flange pattern
Important Fitment Notes
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Manual choke requires a cable: You must install and route a manual choke cable (not included) from the cabin to the carburetor. The choke lever accepts a standard cable barrel clamp.
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NOT for computer-controlled applications — including GM vehicles with Q-Jet carburetors (1981+) and Ford vehicles with AOD transmissions (1981+).
- For spread-bore (Quadrajet) intake manifolds, a square-bore adapter plate is required (sold separately).
- Recommended fuel pressure: 5.5–7 psi. Install an inline fuel pressure regulator if your mechanical pump exceeds 7 psi.
- Throttle linkage stud is positioned for GM/Ford/Mopar cable and kickdown compatibility.
Specifications
| CFM Rating |
600 CFM |
| Barrel Configuration |
4-Barrel Square Bore |
| Choke Type |
Manual (cable-operated) |
| Material |
Aluminum (two-piece construction) |
| Fuel Inlet |
5/8"-20 thread (fits 3/8" flare fitting) |
| Secondary Type |
Mechanical |
| EGR |
None — no EGR provision |
| Primary Venturi |
1-7/16" |
| Secondary Venturi |
1-11/16" |
| Throttle Bore |
1-11/16" (primary & secondary) |
| Part Number |
CBRT-1405 (replaces Edelbrock 1405) |
| SKU |
FJ-CBRT-1405 |
| Price |
$239.99 |
What's Included
- 1 × 1405 Performer Carburetor (Manual Choke)
- 1 × Square-Bore Base Gasket
- 1 × Horn Gasket
- 1 × Air Cleaner Stud
- 2 × Fuel Filters
- 4 × Clamps
- 1 × Fuel Line
- 1 × Mounting Hardware Kit
- Manual Choke Cable (NOT included — required for installation; sold separately)
Why Choose iFJF?
The 1405 manual choke is the no-compromise choice for builders who want simplicity and control. No electrical gremlins to chase — just a cable, a lever, and go. At $239.99 with full hardware included, you're getting a brand-new, factory-fresh carburetor — not a 30-year-old eBay core that needs a weekend of rebuilding. Compatible with Edelbrock rebuild kit #1486 if you ever need to service it. Pressure-tested, 30-day returns, expert tech support included.
Installation Tips
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Choke Cable Routing: Route the cable through the firewall with a grommet, avoiding sharp bends and exhaust manifolds. The cable end attaches to the choke lever with a standard barrel clamp. Pull to close the choke (cold start), push to open (warm).
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Fuel Pressure: Use an inline gauge or pressure regulator to confirm 5.5–7 psi at the inlet. Over-pressurization can force the needle off its seat and flood the engine.
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Initial Tune: Idle mixture screws 1-1/2 turns out from seated. Idle speed: 700–800 RPM (manual), 650 RPM in gear (automatic). Fine-tune after the engine reaches operating temperature.
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Float Level: Check before installation. Target fuel level is 7/16" below the bowl top with the sight plug removed and engine idling.
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Vacuum Ports: The 1405 has a manifold vacuum port at the front and a timed (ported) vacuum port on the passenger side. Plug unused ports with the included vacuum caps.
Frequently Asked Questions
Q: Is this a genuine Edelbrock 1405?
A: No — this is an iFJF replacement engineered to match the Edelbrock 1405 in fitment, CFM, and performance. Not manufactured by or affiliated with Edelbrock. Compatible with Edelbrock rebuild kit #1486 for future servicing.
Q: What's the difference between the 1405 and 1406?
A: The 1405 has a manual choke — you operate it with a cable from the driver's seat. The 1406 has an electric choke that operates automatically. Personally, racers and off-roaders tend to prefer the 1405 for its dead-simple reliability. Daily drivers often prefer the 1406's set-and-forget electric choke.
Q: Does this carburetor have an EGR port?
A: No. The 1405 has no EGR provision — no port, no passages, nothing to block off. This makes it ideal for pre-emissions vehicles, engine swaps into older chassis, and off-road applications where EGR is deleted.
Q: Will this fit my 350 Chevy / 302 Ford / 360 Mopar?
A: Yes, as long as you have a square-bore intake manifold. If your intake is spread-bore (Quadrajet-pattern), you'll need an adapter plate. The 1405 works well on small-blocks up to ~400 cubic inches with street-friendly cam profiles.
Q: Do I need a choke cable? Is it included?
A: Yes, you need a manual choke cable, and it is not included in the box. Universal choke cables are available at any auto parts store for $10–$20. The choke lever on the carburetor accepts a standard cable barrel clamp.
Q: Can I convert this to an electric choke later?
A: The choke housing on the 1405 is designed for manual operation and does not have the internal heating element or electrical connections of the 1406. Converting requires replacing the entire choke housing assembly. If you want electric choke, buy the iFJF 1406 instead.
Q: How does this compare to rebuilding an old Edelbrock 1405?
A: A rebuild kit costs $25–$50 and takes 3–4 hours, but can't fix worn throttle shaft bores, corroded castings, or stripped jet threads. At $239.99, this gives you a zero-hour casting with all-new components. If you do prefer to rebuild, see our Edelbrock 1406/1405 Rebuild Guide.
Q: What's your return policy?
A: 30-day returns. Return the carburetor in resalable condition (no permanent modifications, no filed throttle bores, no drilled passages) for a full refund.
