HP EFI ECU & Harness Kits - 550-601 air-temperature-sensors and it is included as

and it is included as a free upgrade to all who own an APR Stage II ECU Upgrade

Enjoy your new

049 inch Product Type Standard Main Jet Warning California Proposition 65 Warranty Limited 90 Day

3L V6 1997 GMC C1500 305/5L V8 1998 GMC K2500 305/5L V8 1997 GMC C1500 350/5

4L V8 390 CID

HP EFI ECU & Harness Kits - 550-601 air-temperature-sensors and it is included asOverview: 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