Fed up with constantly overhauling the 50+ year old Rochester™ Quadrajet® (Q-Jet™) on your classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? Look no further – the Sniper EFI Quadrajet™ is the solution you've been waiting for! It's the first-ever bolt-on spreadbore electronic fuel-injected throttle body system that eliminates the need for additional adapters, sealing plates, or intake manifold swaps. Maintaining the outstanding features of the 4150 Sniper EFI version, including four 100lb/hr Injectors, built-in timing control, a 3.5" full-color touchscreen, and more, this throttle body supports up to 500 horsepower naturally aspirated. Moreover, the Sniper EFI Rochester Quadrajet™ (Q-Jet) system seamlessly fits most stock air cleaners and offers multiple fuel inlet configurations for a stock-appearing installation.
When it comes to EFI conversion, Sniper stands as the ultimate solution for upgrading your car to fuel injection with just four simple connections. Designed for at-home installation in your garage or driveway with minimal tools, Sniper ensures an afternoon's work results in improved engine performance, better MPG, and easier starting. After the straightforward installation, let your Sniper begin the self-tuning process. The user-friendly calibration wizard lets you answer a few questions about your engine, initiating self-tuning without the need for a laptop. You don't need to be a computer whiz or tuning specialist to utilize a Sniper EFI system – the high-resolution 3.5" full-color touchscreen facilitates tuning and gauge displays.
The Sniper EFI Master Kit goes beyond the basics, providing a complete fuel system, including 20ft of 3/8" vapor guard fuel hose, fuel pump, filters, and all necessary hardware to return fuel to your tank. Additionally, the kit includes a 4.9 wideband oxygen sensor with a leak-free oxygen sensor, OEM-style TPS/IAC, fuel pressure regulator, all Stainless Steel T-Bolt clamps, and a Stainless Steel weldable flange.
Sniper EFI is part of a comprehensive ecosystem! Your new Sniper kit seamlessly pairs with Holley's Sniper Hyperspark Ignition, Fuel Systems, Air Cleaners, Throttle Body & Digital Dash, unlocking the full potential of your build. Complete your fuel injection journey by exploring our full range of ignition, fueling, and accessory options!
Features:
- Compatible with most stock Rochester Quadrajet™ (Q-Jet) air cleaners
- Self-tuning ECU for hassle-free operation, no advanced computer/tuning skills required
- Simple Calibration Wizard for easy setup without a laptop
- Only 4 Wiring Connections Required (Battery +, Battery -, Switched Ignition & RPM)
- High-Resolution Full-Color Touchscreen for Initial Setup, Tuning, and Gauge Displays.
- Throttle body-mounted ECU – no extra boxes to mount
- Supports up to 500hp with Four 100 Lb/Hr Injectors!
- Designed to deliver the signature Rochester Roar at Wide Open Throttle!
- Integrated ignition timing control
- Transmission provisions on throttle lever for TH350/TH400 and 200R4/700R4
- Brake Booster adapter included, if required
- Universal Throttle and transmission kickdown bracket included
- Complete fuel system includes – external fuel pressure regulator preset to 58.5psi, 20ft of 3/8” Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
- OEM Style Throttle Position Sensor (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
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
