Holley HP EFI ECU and Harness Kits 550-604N pre-bent-fuel-lines Includes Scavenger X-pipe Crossover for

Includes Scavenger X-pipe Crossover for Maximum Power

1966-1969 Chevrolet Caprice

Front Brake Line Kit For 66 Bel Air Impala Standard Brakes Stainless

2004-2006 Chevrolet Colorado 169 CID

Holley HP EFI ECU and Harness Kits 550-604N pre-bent-fuel-lines Includes Scavenger X-pipe Crossover forHP ECU AND HARNESS, MPFI, NTK Looking for a plug and play alternative for your stock or built late model factory 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