Got a 1985 with stock 305 set up for california smog. Got a new Rochester quadrajet on it. Rotor, cap, plugs, wires, ignition modual, coil, condenser. Can't find a vacuum leak anywhere. Replaced some suspect vacuum hoses. EGR working. Heat Riser Working. New PCV. Had a buddy go through carb too, just to be sure.
Problem is, it backfires, heasitates and almost dies when under heavy acceleration. Sometimes. Sometimes it does great. Once it does backfire, it pretty much keeps doing it when accelerating quickly. I can accelerate slowly and it seems to be ok. I don't know what to do. Help!
Maybe valves? Can timing chains slip back and forth? The smog stuff is all new to me so I have been studying it like crazy. Don't think it is smog anymore. Another friend told me maybe distributer pick up coil. Said it was easier to change the distributer than to change the pick up coil in the distributer. Anlyone know if that is true? Any help is greatly appreciated guys. Thanks.
Problem is, it backfires, heasitates and almost dies when under heavy acceleration. Sometimes. Sometimes it does great. Once it does backfire, it pretty much keeps doing it when accelerating quickly. I can accelerate slowly and it seems to be ok. I don't know what to do. Help!
Maybe valves? Can timing chains slip back and forth? The smog stuff is all new to me so I have been studying it like crazy. Don't think it is smog anymore. Another friend told me maybe distributer pick up coil. Said it was easier to change the distributer than to change the pick up coil in the distributer. Anlyone know if that is true? Any help is greatly appreciated guys. Thanks.