Holley HP EFI ECU and Harness Kits 550-601

Holley Hp 550-601 we use this kit when converting factory efi sbf applications to Holley efi.

We recommend Holley Hp over terminator mainly for the far superior o2 sensor that is used as well as on board data logging, no need for having your laptop in your racecar while your making a pass!  Uses correct IAC plug for Ford application. Comes with CTS and MAT sensors to replace your factory sensors. o2 sensor and map sensor also included making this the best bang for the buck when it comes to swapping your 302/351 sbf based engine from factory ecu over to Holley EFI.