1988 350 TPI. When the car is on, and I go to rev it, it hesitates before it revs up. Like a miss fire, or no gas. When it gets to operating temp and reving it for a while it will stall. Also when I put it in gear, it goes to stall, or it does stall. This problem started out as a hesitation at cold start up and has progressed to this. I can't even drive the car. I have changed:
Temp sensor, fuel pump, fuel filter, fuel ingectors, tps, iac, distributor, coil, wires, spark plugs.
None of these things have changed the problem. Also no engine codes.

 

Nid you adjust the tps and IAC correctly? I would think IAC, myself... How about your IAT sensor on the bottom of the plenum?

 

I adjusted the tps, but I didn't know about the iac. How do I adjust that? Also when the the car hesitates when I rev it it sometimes has a little backfire in the intake.