I'm trying to swap a 91 fuel injected 350 into my 80 blazer. I already removed the computer and some of the wiring. some of the wires on the harness go to other plugs under the dash and to the fuse box. I need to know wich wires and plugs are needed in order for my TBI to work in my 80 blazer. If I can eliminate some of the wires and plugs please let me know which ones, or if I need them all. thanks.