Hey guys. We just got a 83 firebird, and we love it, and the test drive went fine. But after getting it home, it wouldnt start. We replaced the fuel pump relay, fuel filter and the fuel pump itself. It ran finally but sputtered off and we couldnt get it going again. A mechanic friend of mine says could be the ECM, the computer. Anyone have any other advice? Thanks. We are very frustrated.