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Re: 1986 gmc 1500 4x4
Welcome to the board. Are you sure it has TBI? If it does could it be an 87? There are some differences between the tbi and carb motors, but the swap has been done and there are some very good threads on hear that you can search for most answers concerning the swap. If it is a TBI motor, you can put a 350 in by using the throttle body and computer out of the 350. I think they are pretty much the same otherwise. Good luck.
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