2016-2024
2010-2015
1993-2002
Installation Time
(approx) 4 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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Holley Sniper EFI Rochester Quadrajet 4-Barrel Fuel Injection Conversion; Gold (Universal; Some Adaptation May Be Required)
Item CC18203
Our Price
$1,699.95 each
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$85.00 Available in AM Cash Rewards.
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Supports Up To 500 Hp Naturally Aspirated
- 3.5 In. LCD Touchscreen For Setup And Tuning
- For Spreadbore Manifold Applications
- Includes (4) 100 Lb./Hr. Fuel Injectors
- Built-In Ignition Timing Control When Paired With Compatible Ignition Components
- Designed To Fit Most Stock Rochester Quadrajet Air Cleaners
- Certified To ISO 8846, SAE J1171, And Coast Guard Ignition Protection And Fire Resistance Standards
- Fuel Pump Outlet Wire With Built-In Relay
- Initial Handheld Calibration Wizard Eliminates Need For Laptop
- Includes Universal Throttle, Transmission Kickdown Bracket, And Brake Booster Adapter
- Equipped With Bosch LSU 4.9 Wideband Oxygen Sensor For Real-Time Fuel Map Learning
- Built-In Manifold Air Pressure And Inlet Air Temperature Sensors
- Throttle Body Mounted ECU For Cleaner Engine Bay
- Three Ground Trigger Outputs For Accessory Control
- Simple Installation With Only Four Wires Required
- Fits Universal; Some Adaptation May Be Required For Non-Emissions Controlled Vehicles
| Brand | Holley |
| Throttle Body Type | Cable |
| Throttle Body Diameter | N/A |
Description
Precision Fuel Injection. The Sniper Holley EFI Rochester Quadrajet Carburetor conversion system enhances classic spreadbore intake setups by providing advanced electronic fuel injection capabilities without the need for intake manifold replacement or adapters. It simplifies upgrading older vehicles by offering self-tuning functionality, improved throttle response, and ignition timing control for naturally aspirated engines supporting up to 500 horsepower.
Robust Build Quality. Constructed with a 715 CFM throttle body and finished in classic gold, this unit integrates four fuel injectors, a Bosch LSU 4.9 wideband oxygen sensor, and sensors for manifold air pressure and inlet air temperature. The fuel injection ECU is mounted directly on the throttle body, promoting a tidy engine bay and reliable performance, while meeting ISO 8846, SAE J1171, and Coast Guard ignition protection and fire resistance standards.
Easy Installation. Designed for straightforward bolt-on application, this system requires only four electrical connections and includes all necessary mounting brackets and adapters. No adapters, sealing plates, or intake manifold replacements are required, making it accessible for experienced enthusiasts and professionals alike.
Application. This unit is intended exclusively for use on non-emissions controlled vehicles, such as vehicles manufactured before 1967 for federal certification and before 1965 for California certification. It is illegal to install on emissions controlled vehicles of newer model years.
Holley 550-869
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Throttle Body
- (1) Fuel Pressure Regulator
- Hardware
- Instruction Manual
5.0
Reviews of Holley Intake Products (4)
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