Holley Sniper HO550-527 EFI Self-Tuning Fuel Injection System

Holley Sniper EFI self-tuning fuel injection systems from Holley deliver all the benefits—and none of the hassles.

These full-featured throttle bodies are easy to install, can support a lot of horsepower, and will keep your budget intact. They put an end to carburetor cold start issues, hesitations, vapor lock, and flooding. Each of these Holley Sniper EFI systems hit the performance mark with a integral mounted ECU. They're self-learning (no laptop is needed for set up) and they include a small color touchscreen to help you set up and tweak. Holley also provides you with a choice of finishes—satin black or polished aluminum. Make your conversion simple, while getting maximum bang for your buck, with a Holley Sniper EFI self-tuning fuel injection system from Holley.

 

• Self Tuning: Yes
• User Tunable: Yes
• Maximum Horsepower with Gas: 1,250
• Timing Control Compatible: Yes
• EGR: No
• Transmission Controller Included: No
• Injection Style: Throttle body
• Metering Style: Speed density
• Power Adder Compatible: No
• Intake Manifold Included: No
• Fuel Rails Included: No
• Throttle Body Included: Yes
• Throttle Body Mounting Flange: 4-barrel square bore
• Venturi Quantity: 8
• Airflow Rate (cfm): 1,600 cfm
• Throttle Body Material: Cast aluminum
• Throttle Body Finish: Polished
• Injectors Included: Yes
• Injector Size (lbs/hr): 100 lbs./hr.
• Calibration Module Included: Yes
• ECM Included: Yes
• Wiring Harness Included: Yes
• Oxygen Sensor Included: Yes
• Fuel Pump Included: No
• Fuel Pressure Regulator Included: No
• Distributor Included: No
• MAP Sensor Included: Yes
• IAT Sensor Included: No
• TPS Sensor Included: Yes
• IAC Motor Included: Yes
• Quantity: Sold as a kit.
• Notes: The Sniper EFI 4150 2x4 was designed for use on naturally aspirated engines. The system requires a high pressure fuel pressure regulator and fuel pump capable of supplying the fuel demand and maintain 60 psi of fuel pressure at all conditions.