I did lots of different searches and found some info but need a little bit more.
I have a 86 trans am that had a 305 tpi in it
I installed a built 350 with all the intake parts off the 305.
I didn't change the knock sensor or EST or ESC ( I don't really know what these things do)
But I did change the Prom to a custom made one.
(but don't know if it is a good custom one or not)

My problem is that when the car is cold it dosn't want to start.
Once it is warmed up it will start fine.

I think the fuel injectors have been changed to 350 injectors but am not sure. Is there any way to confirm what injectors I have?

If anybody has the GM part #'s for the knock sensor abd EST and ESC that would be great.

Thanks
I find this problem really frustrating

 

That is what these cars will do if the cold start injector is not functioning.If it was ok before you started changing stuff then most likely the custom chip is not right for this intake setup and is not firing the cold start injector.The later tpi cars used longer pulses on the main injectors for cold starts but the early tpi stuff like your 86 has a dedicated cold start injector.If that doesn't fire or is clogged from sitting too long, starting it when cold can be a real nightmare.