HP EFI ECU & Harness Kits - 550-601N actuator-vacuum-lines 6L V8 1979 - 1986

6L V8 1979 - 1986 GMC C1500 305/5L V8 1978 - 1985 Chevrolet G30 305/5L V8 1976 - 1983 Pontiac Grand LeMans 305/5L V8 1976 - 1983 Chevrolet Malibu 305/5L V8 1979 - 1986 GMC G1500 305/5L V8 1962 - 1969 Chevrolet Biscayne 327/5

OEM - 52127967

2007-2012 Chevrolet Colorado 223 CID

1x Vapor Return Fuel Line (3/8 inch Diameter)

The factory "car style" accessory drive system has the alternator mounted low & it gets into the frame in some applications (i

HP EFI ECU & Harness Kits - 550-601N actuator-vacuum-lines 6L V8 1979 - 1986Overview: 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 along with