I am doing a motor transmission and rear-end swap on my 83 malibu wagon. I put a crate 350 engine in it with out all the smog stuff but kept the A/C my question is will I need any of the wiring that comes out of the passenger side bottom fire wall? I don't think i would all the important wiring is on the other harness (starter , distributor power , alternator etc.) But wanted to ask before i remove theharness. Is that the computer harness? Any info. will be appriciated. Thanks Guys