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Muscular Exterior Exhaust Tone
1977-1977 Buick Skylark 305 CID
5L V8 1965 Plymouth Fury II 273/4
" Pipe Fitting
Color: Gold
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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