Holley Manuals & User Guides

Holley Terminator X Max MPFI Controller Kit User Guide TERMINATOR X AND X MAX PARTS GUIDE PART NUMBER ECU MAIN ENGINE HARNESS IGNITION HARNESS INJECTOR HARNESS TRANSMISSION HARNESS DRIVE-BY-WIRE HARNESS…

OFF-ROAD BAFFLE for LT OIL PANS (302-24 or 302-24BK) P/N 302-34 Instruction Sheet 199R12452 302-34 Off Road Baffle For LT Oil Pans NOTE: This instruction sheet is intended for installation…

HOLLEY 223-36A Intech Cold Air Intakes Product Information Product Name: 2019-2022 Ram 1500 V8, 5.7L Intech Cold Air Intake System Part Number: 223-36 Installation Instructions: P/N 80R158 223-36A 223-36H 61R867…

Holley 2019-2022 Ram Gauge Mounting Arm Instruction Manual Materials Required Tools 10 mm 1/4” drive Socket, deep or regular 3 1/4” Drive Extension 1/4” Drive Socket Wrench Small 1/7” Flat-blade…

4 Injector Sniper EFI XFlow (550-540 Shiny, 550-541 Black, & 550-542 Gold) 8 Injector Sniper EFI XFlow (550-544 Shiny, 550-545 Black, & 550-546 Gold) QUICKSTART MANUAL SNIPER EFI INSTALLATION INSTRUCTIONS…

Holley 197-305 Mopar Gen III Hemi Premium Alternator Important DANGER! Eye protection must be worn when working on batteries. WARNING! Remove any jewelry before working on ANY electrical system. WARNING!…

Holley 20-160 Low Mount Complete Accessory Drive Kit Product Information The Holley Accessory Drive Kit consists of various components that are necessary for the installation and operation of the accessory…

Holley 300-685BK Hi-Ram Modular Intake Manifold Kits Product Information The Holley Gen 3 Hemi Hi-Ram Modular Intake Manifold Kits are high-performance intake manifold kits designed for various Hemi engine applications.…

Holley 199R12422 3.5 GPM Fuel Pump WARNING! THESE INSTRUCTIONS MUST BE READ AND FULLY UNDERSTOOD BEFORE BEGINNING INSTALLATION. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN POOR PERFORMANCE, VEHICLE DAMAGE,…

Holley 12-350 Dual Fuel Pump Module System Product Information The Gen 5 Camaro Twin Pump Fuel Module is a drop-in fuel cell pump hanger designed for use in the Gen…

Comprehensive guide for the Holley EFI 6.86” Pro Dash, covering quick start setup, mounting, connections, wiring, sensor configuration, and firmware updates. Includes details on the 558-456 wiring kit.

Comprehensive installation and tuning manual for the Holley TERMINATOR LS Multi-Port Fuel Injection (MPFI) System. Covers part numbers 550-608 through 550-615, 550-622 & 550-623. Includes wiring, sensor connections, ECU setup,…

Comprehensive installation, tuning, and adjustment manual for Holley Street Warrior carburetors, models 0-80457S (electric choke) and 0-1850S (manual choke). Covers removal, installation, linkage, choke adjustment, fuel level, idle mixture, secondary…

Comprehensive installation manual for the Holley Sniper EFI Stealth 4500 fuel injection system. Covers system requirements, parts identification, wiring, setup, tuning, and troubleshooting for optimal performance.

Detailed instructions for setting up and tuning the Holley Avenger EFI ECU and Handheld system. Covers calibration, sensor verification, startup, ignition timing, idle settings, self-tuning, and basic tuning parameters for…

A comprehensive quickstart manual and installation guide for the Holley Sniper EFI Throttle Body System (models 550-510, 550-511, 550-516). This document provides essential information for installation, system requirements, wiring, calibration,…

Installation guide for the Holley Accessory Drive Kit (Part Numbers 20-163 & 20-163BK) for LS engines. Includes parts list, dimensions, and step-by-step instructions for A/C, alternator, power steering, and belt…

This guide explains how to install and configure the Holley PWM Alternator Harness (Part Numbers 558-475 & 558-476) for controlling GM and Ford alternators with Pulse Width Modulation signals using…

Detailed specifications, wiring instructions, and performance graphs for the Holley Coyote Smart Coil (P/N 556-160 & 556-161), designed for Holley EFI systems and high-powered applications.

This document provides detailed installation instructions for Holley HP EFI Universal Retrofit Kits (models 550-500 and 550-501). It covers essential steps from initial overview and required skills to fuel system…

Comprehensive wiring manual and diagrams for Holley HP EFI and Dominator EFI Systems (Model 199R10555), covering ECU installation, pinouts, sensors, ignition systems, and programmable I/O.

Detailed instructions for installing, configuring, removing, and aligning Holley EFI distributors. Covers sensor settings, rotor alignment, and troubleshooting for optimal engine performance with Holley EFI systems.