GM 58X EFI HARNESS KIT - 558-501 2WD Expansion is guaranteed only to

Expansion is guaranteed only to 1/4 inch over the original neck size

Brand Holley Emission Code 5 Material Non-Stick Model 4150/4160 Product Type Fuel Bowl Gasket Warranty Limited 90 Day

Notes: This system fits all 2/4 WD and all Wheelbases

Works with Gen III Hemi Injectors & Bosch EV-1 Style Injectors

4L V8 1973 Chevrolet Monte Carlo Landau 454/7

GM 58X EFI HARNESS KIT - 558-501 2WD Expansion is guaranteed only toOverview: 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: Harness Kit Includes; Main Power Harness, LS2 Main Harness & LSX Injector harness Simple Installation Works with HP or Dominator ECU's