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Muscular Exterior Exhaust Tone
4L V8 1973 - 1974 Chevrolet C30 Pickup 454/7
5 Black cable ties
“High Performance” Series features higher CFM fan(s) plus slim line electric fan profile for those with higher CFM airflow needs and/or space constraints where there is limited space between the radiator and front of engine
1977-1977 Buick Skylark 305 CID
HP EFI ECU & Harness Kits - 550-601 AP Muscular Exterior Exhaust ToneOverview: 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
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