I have a 1994 chevy k1500 4x4 ext cab with the original factory 5 speed manual and a TBI 350 from a 1991 chevy caprice. What is the usual cause for the problems described below?: The starter works nicely, but the engine is just not wanting to start easily. It will turn over eventually, but it takes a couple cranks and my foot almost to the floor on the accelerator for it to work. It had a low idle before and sometimes it stalls out before this problem occurred, but now it literally wants to die. When you give it throttle, it feels as if I'm not getting combustion on every stroke as if some strokes werent firing. The aftermarket Tach needle is going all over the place and the "shift up" light is blinking on and off in a random fashion as if there were an electrical problem(ie bad connection). If I dont try to keep it running, it clunks out. Someone told me ignition control module, but that doesnt sound right at all cuz how would that affect the tach and shift light. I think its an ECU problem or something along those lines. Or it could be a combo of a bad ground and bad ignition control module. Edit: Actually the ignition control module might make sense because when i took the air cleaner assembly off and looked at the injectors spray as my dad was trying to keep the truck alive, it wasnt cutting the spray ever...so yea.