This wiring harness interfaces a Holley EFI ECU to a 2V or 4V 1999-2004 Ford Modular engine. It is meant to be used in conjunction with an injector harness, a coil harness, and ignition modules. Most stock sensors are used with this harness. 

•Harness Kit Includes: Main Power Harness, Ford Modular Main Harness, Ford V-8 Injector Harness, Ford Modular 2V Coil Harness, Coil Drivers

•Simple Installation 

•Can be used with HP or Dominator ECU's

NOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit. This kit is meant to be used in conjunction with an injector harness, a coil harness and ignition modules.