Sniper EFI 2300 brings self-tuning electronic fuel injection within reach for vehicles that came standard with a 2300 Holley flange, from Fairlanes and Galaxies to Mustangs, Cougars, and F100s. It's an economical way to add EFI while curing cold-start issues, hesitation, vapor lock, and flooding.
Key Features:
- Bolt-on replacement for 2300-flange Holley carburetors (e.g., 0-4412, 0-7448)
- Supports up to 350 HP naturally aspirated or 285 HP forced induction with (2) 100 lb/hr injectors
- Throttle-body-mounted ECU
- Just 4 wire vehicle connections: battery, switched ignition, RPM
- Internal fuel pressure regulator
- High-resolution full-color 3.5" touchscreen display
- Simple calibration wizard, no laptop required
- Includes clamp-on O2 sensor kit
- Adapts to square-flange or Q-jet-flange 4bbl intakes with a Mr. Gasket adapter (1933 for 4150 square flange, 1929MRG for spread bore)
- Designed for at-home garage installation with Holley's install manuals and videos
Specifications:
- Flange: 2300 (Holley)
- Max Power: 350 HP naturally aspirated / 285 HP forced induction
- Injectors: (2) 100 lb/hr, included
- Wiring: 4-wire connection
- Display: 3.5" touchscreen handheld
- O2 Sensor: Clamp-on kit included
- Vehicle Fit: Classic Fords with 2300 flange (Fairlane, Galaxie, Falcon, Comet, F100, Javelin, Rebel, Mustang, Thunderbird, Cougar, and more)
- Part Number: 550-850
Can also adapt to a square-flange or Q-jet spread-bore 4bbl intake using a Mr. Gasket adapter (P/N 1933 or 1929MRG).
FAQ
What carburetor flange does the Sniper EFI 2300 replace?
It's a bolt-on replacement for popular classic Holley 2300-flange carburetors like the 0-4412 and 0-7448.
How much horsepower can it support?
Up to 350 HP naturally aspirated or 285 HP with forced induction, using the included (2) 100 lb/hr injectors.
Does it require a laptop to tune?
No, the 3.5-inch touchscreen handheld has a simple calibration wizard — no laptop needed.
Can it be adapted to a square-flange or spread-bore intake?
Yes, with a Mr. Gasket adapter — part 1933 for 4150 square flange or 1929MRG for spread bore.
What's included with the kit?
The throttle-body-mounted ECU, internal fuel pressure regulator, touchscreen handheld, and a clamp-on oxygen sensor kit.
How many wiring connections does it need?
Just 4 — battery, switched ignition, and RPM signal.
