An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI harness kit comes complete with the main harness, power harness and injector harness to support your primary system.
Features:
Universal
Simple installation
Works with Dominator and HP
Includes main power harness, MPFI main harness, and V8 injector harness

Specs

Brand: Holley EFI
Category: Air and Fuel Delivery
Emission Code: 4
Harness Application: Ford, GM, Universal
Ignition Type: CD Ignition (No Timing Control)
Injector Connector: Jetronic / Minitimer (Bosch)
Part Type: Fuel Injection Harness
Product Type: Harness Kit
Sub Category: Wire, Cable and Related Components
Warning: California Proposition 65

Guides & Documents

Engine Wiring Harnesses Installation Instructions (425558504)

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CARB warning

Holley 558-504 Specifications

KEY SPECS
MFG. Part #	558-504
Brand	Holley

GENERAL
Sold in Quantity	Each
GTIN Code	090127721353

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