Holley EFI - 550-869
Sniper EFI Quadrajet Carburetor; 4bbl.; 715 CFM; Spreadbore; 58.5 PSI; 500 Max HP; 1.375 Primary/2.00 Secondary Throttle Bore; Self Tuning System w/Handheld EFI Controller;
Are you tired of rebuilding the 50+ year old Rochester Quadrajet (Q-Jet) on your classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? Introducing Sniper EFI Quadrajet. The first bolt-on spread bore electronic fuel injected throttle body system that does not require any additional adapters, sealing plates, or intake manifold swaps! The Sniper EFI Rochester Quadrajet (Q-Jet) system retains the same great features as the 4150 Sniper EFI version such as; four 100lb/hr. Injectors, built-in timing control, a 3.5 in. full-color touchscreen, and much more! The throttle body will support up to 500 horsepower naturally aspirated. In addition to all of these great tried and true features, the Sniper EFI Rochester Quadrajet (Q-Jet) system will fit most stock air cleaners and offers multiple fuel inlet configurations that allow for a stock appearing installation!
- Throttle Body Mounted ECU - No Extra Boxes To Mount
- Supports Up To 550 HP w/Four 100 lb/hr. Injectors
- Only 4 Wiring Connections Required
- Integrated Ignition Timing Control
- Trans. Provisions On Throttle Lever for TH350/TH400/200R4/700R4
- Universal Throttle/Trans. Kickdown Bracket Included
- High Re Full Color Touchscreen For Setup/Tuning/Gauge Displays
- Fits Most Stock Quadrajet Air Cleaners
- Simple Calibration Wizard - No Laptop Required
- Clamp-On Oxygen Sensor Kit Included
- Requires External Fuel Pressure Regulator
- Genuine Bosch LSU 4.9 Wideband O2 Sensor Included
