I am putting a 1993 Ford Lightning 351W-EFI in the 56 F100 I'm building. I can't seem to find any really clear instructions on what I need for inputs and outputs to make it run right. I know I don't need all the wiring from this harness, but am just somewhat confused. Going to use a 89 Mustang harness and computer? Can anyone direct me to a good sight for more info. I'm a carburetor guy, so this is all new territory for me. Any help will be much appreciated. Hopefully when done I'll have a cool 56 Lightning.
I just built a '68 Mustang with 5.0 EFI for my wife.
I had little experience with EFI prior to this conversion. I bought a RJM harness and put it on basically a '96 Explorer 5.0 using a Mustang MAF, computer (A9L or A9P) and distributor.
You lay the harness on top of the engine and attach one ground to a specified intake bolt. Then you just start plugging stuff in. It requires 2 power wires that go to the starter solenoid. Then there are fuel pump and pump shutdown wires.
Honestly the hardest part was making the hole for the harness to go through the firewall.
You will need to run an in tank fuel pump because a frame mounted one will vapor lock on long hot days.