Holley Sniper EFI 550-510 User Manual

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550-510, 550-511, & 550-516
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SNIPER EFI INSTALLATION INSTRUCTIONS
Congratulations on your purchase of a new Sniper EFI Throttle Body System built
by craftsmen to exacting standards in our Bowling Green, Kentucky facility. Every
Sniper EFI System is 100% tested before it leaves our facility for “bolt on and go”
performance.

Holley Sniper EFI 550-510 Specifications

General

Part Number	550-510
Fuel Type	Gasoline
Horsepower Rating	Up to 650 HP
Throttle Body Material	Aluminum
Injector Size	100 lb/hr
Self-Tuning	Yes
Operating Voltage	12V
ECU Included	Yes
Fuel Pressure Regulator Included	Yes
Touchscreen Included	Yes
Boost Compatible	No
Transmission Control	No
Ignition Control	Yes
Product Type	Fuel Injection System
System Type	Throttle Body Injection (TBI)
Throttle Body Size	4-Barrel
Display Type	3.5 inch Touchscreen
Dimensions	Varies by component
Weight	Varies by component
ECU Mount Location	On Throttle Body
Required Fuel Pump	Electric, High Pressure
Included Components	Throttle Body, ECU, Touchscreen, Wiring Harness, Fuel Pressure Regulator, Sensors
Compatibility	Universal

Summary

SNIPER EFI INSTALLATION INSTRUCTIONS

INTRODUCTION & SYSTEM REQUIREMENTS

Engine Requirements

Verify vehicle meets engine and fuel system requirements before installation.

Fuel System Requirements

Understand fuel system requirements for high pressure operation.

Tools Required for Installation

List of tools needed for the Sniper EFI installation process.

Sniper EFI Wiring Harness Overview

Calibration Wizard

Basic Engine Setup

Configure system type, cylinders, displacement, idle, and cam type.

Ignition and Timing Configuration

Set power adder, ignition type, and timing control parameters.

Finalize Calibration

Create and upload the final calibration file to the ECU.

Sensor Verification

Startup Procedure

After Startup Checks

Idle Setting and Throttle Plate

Initial Startup and Timing Setup

First Drive and Self-Tuning

System Installation Overview