Quote Originally Posted by Scottydoggs View Post
your gonna have to run a pcm set up for like a dune buggy or off road car to make the engine run in there. the 3400 runs on obd2, the 88 car does not.

so grab the harness, and the pcm.
It IS possible to run the 3.4 with all the 2.8 stuff...just swap over all the 2.8 crap to the 3.4 block. It'll run just fine that way.