hi i have a 1991 camaro rs with a tbi 305 just replaced all 16 lifters and replaced the distributor and it was running like it was brand new then a week later it starts reving on its own idle bounces and then it stalls wouldn't start for thirty minutes and then i was able to start it and drive it home still reving on its own so i replaced the idle air control valve and going to try and replace the throttle position sensor and see how that gos. if that dosnt work any opinions

 

Engines sometimes rev up when they are running out of fuel before they stall. Fuel pump relay or something like that?

 

would that still let it run bad for a little bit

 

i re timed the engine seems to be doing fine i have to wait and see because it was timed before

 

Nope tried to start it this morning and it ran and then did the same rev up and then stall checked relay its good i can hear the pump priming its self

 

check your coolant temp sensor and the injectors.

 

both the coolant sensor and injectors are new replaced them a month ago

 

First thing that comes to mind is vacuum leak...

 

found a leak on a hose going to start it tomorrow
and see what happens