Holley EFI 558-436 Engine Control Module Wiring Harness

Wiring Harnesses - Holley – Modern Racing

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Holley

Holley EFI Digital Dash Wiring Harness

Holley Power-Tap Flex Fuel & Alternator Harness

Holley

Holley EFI Ford Coyote Ti-VCT Coil Harness (2015.5-2017) 558-322

UNIVERSAL MPFI W/ COP MAIN HARNESS

Universal MPFI Coil on Plug Main Harness

Coil Harness (558-314) by Holley. Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality.

Holley EFI 558-314 - Ignition Coil Harness

Holley EFI LS1/LS6 (24X/1X) Engine Main Harness for HP EFI/Dominator EFI 558-102

This harness includes the Switched 12v Power Wire, Main Battery Power and Ground, Fuel Pump Relay, Coil – Input wire, and Magnetic Distributor Input

Holley EFI Sniper EFI Main Wiring Harness 558-490