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Im in the process of swapping the efi motor into the 77 im wondering what wires i need to run it (the ones that supply power to what i need it to run)
i have the computer and the complete wiring harness.
I did the same throng about ten years ago. You need to tie in your key on power to the ignition, clutch safety switch, and supply power to the added fuel pumps.
I found that comparing the engine wiring diagrams of both years will really help you from missing anything.