Holley HP EFI ECU and Harness Kits 550-606 instrument-panel-lights 1963-1966 GMC C15/C1500

1963-1966 GMC C15/C1500

4 V8 2010 Ford F-350 Super Duty XLT 391/6

OEM - 5L8Z-2A361-A / 5L8Z2A361A

Each shot glass is adorned with the Flowmaster Exhaust logo

4x Brass Fittings

Holley HP EFI ECU and Harness Kits 550-606 instrument-panel-lights 1963-1966 GMC C15/C1500FORD MPFI HP ECU AND HARNESS KIT Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along