Holley EFI Benchtop Harness 558-127 AirFilters GMC 1500 Series (1963)

GMC 1500 Series (1963)

0L V8 1970 Chevrolet Chevelle Concours Estate 350/5

6 V8 1970 - 1972 GMC Jimmy 307/5 V8 1968 - 1971 GMC K15/K1500 Pickup 307/5 V8 1967 - 1968 GMC K15/K1500 Pickup 327/5

4L V8 390 CID or 7

9 L V8 1974 - 1983 Jeep Wagoneer 360/5

Holley EFI Benchtop Harness 558-127 AirFilters GMC 1500 Series (1963)Firmware Updating Dash Configuration ECU Testing Features: Terminated connectors for several EFI inputs1 Included power switch allows for a quick ? install? on your test bench2 Great for ECU diagnostics that do not require a running engine, firmware updates, or 7? dash calibrations3 Specs: Brand Holley EFI Emission Code 6 Product Type Harness Warning California Proposition 65 Application: Year Make Model Submodel