i have a 91 camaro z28 with a 305 been bored .30 over. Its just a typical street car but I've run into a problem. When the car warms up to operating temperature and i cut if off, it will not start back up. I've changed fuel pump, plugs, wires, distributor cap, and rotor button. When this happens with no starting i throw my fuel pressure gauges on it and its normal, and i check the fire and i have fire? What else could it be? thanks in advance.

This problem when it first started, I had it check out, they let it run for over an hour, turned it off and on and it started right up, but then it got to where it was more and more.

now I can just about depend on it not to start first time. It hasn't left me stranded yet. I have had a new key, all of that. I can't find any one hear that can fix it, work gets done on it, but it don't fix it. I would really love to get this problem fixed.