19t/a96lt1

iTrader: (-1)

ok so here it goes, i have an lt-1 trans am 96. my car started to randomly hesitate and backfire and run like ****. so i wanted to put a better motor in it anyway so, i put a rebuilt 355 lt-1 in it (completely different motor) with lt-4 hotcam, i replaced opti, new wires, new plugs, new gaskets. so i get it done and fire it up AND STILL RUNS LIKE CRAP... wtf is the problem. i got my buddy to tune it and it was like the computer wouldnt take the tune. he got it perfect then it ran rich and the plugs screwed up. so it runs fine when you replace the plugs then it runs so rich that the plugs go bad. i dont know what to do i am running out of money to dump in this thing and i just want my car back does ANYBODY know whats up with my car. i would GREATLY appricate it. i am going to try to take my buddys computer out of his 97 t/a and put it in mine to see if its even the problem. please help