Due to increased demand and industry-wide supply chain delays, we are currently experiencing above normal lead times for certain items. We are working at full capacity to ensure the quickest turn-around for your parts. Our vendors are also experiencing similar delays in obtaining raw materials for parts.

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Holley Sniper EFI - Spreadbore Style - Gold Zinc

Holley Sniper EFI - Spreadbore Style - Gold Zinc

    Part #: HLY-550-869
    Price: $1,699.95
    Shipping Weight: 13.00 pounds
    Quantity in Basket: None


    Holley Sniper EFI - Quadrajet Spreadbore Style for 4BBL. Intakes 

    Fits IH V8 Factory Spreadbore Intakes with Grinding to Thermostat Housing

    Holley Sniper EFI Quadrajet self-tuning fuel injection systems are ideal replacements when you're tired of rebuilding the 50-plus-year-old Rochester Quadrajet (Q-jet) on your classic ride. They're the first bolt-on, spread-bore, EFI throttle-body systems not requiring any additional adapters, sealing plates, or intake manifold swaps. They retain the same great features as the 4150 Sniper EFI version (four 100 lbs.-hr. injectors; built-in timing control; high resolution 3.5 in. full color touchscreen; etc.). Their throttle body will support naturally aspirated power up to 500 hp. In addition, they offer multiple fuel inlet configurations that allow for a stock-appearing installation and fit most stock air cleaners. Modernize your Q-jet-powered classic vehicle with a Holley Sniper EFI Quadrajet self-tuning fuel injection system. 


    • Available in 3 Finishes - Classic Gold, Shiny and Black Ceramic
    • Designed to deliver the signature Rochester Roar at Wide Open Throttle!
    • Throttle body mounted ECU – no extra boxes to mount
    • Supports up to 500hp with Four 100 Lb/Hr Injectors!
    • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
    • Integrated ignition timing control
    • Transmission provisions on throttle lever for TH350/TH400 and 200R4/700R4
    • Fits most stock Rochester Quadrajet™ (Q-Jet) air cleaners
    • Brake Booster adapter included, if required
    • Universal Throttle and transmission kickdown bracket included
    • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays.
    • Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
    • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
    • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
    • OEM Style Throttle Position Senser (TPS)/ and Idle Air Control (IAC) for years of dependable service.
    • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
    • Requires external fuel pressure regulator, such as: 12-886 or 12-879
    • Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
    • A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
    • Patent Pending

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