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OEM - 52008399AB
1973-1974 GMC K15/K1500 Pickup 454 CID
EK-61-855637-1
3" digital dash support
Holley HP EFI ECU and Harness Kits 550-606 FrontLines OEM - 52008399ABFORD 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
