************************************************* I WOULD LIKE TO THANK ALL OF YOU FOR YOUR INPUT.I HAVEFOUND THE PROBLEM, IT WAS SOME CRACKS IN THE THROTTLEBODY, IT WAS SUCKING VACUM, THATS WHY IT WOULD NOT START. THANK YOU ALL AGAIN

Have you tried another ign coil?

Carbon on the backs of the intake valves. Gm top end cleaner or Sea Foam will help it alot.

do you have headers? Could be heat soak. starters don't like getting really hot, maybe put heat wrap on it.

I agree with Leo the ignition coil...

Originally posted by LeoP:
Have you tried another ign coil? Yes, this is the 2nd coil i've replaced in the last 6 weeks. And thank you for your quick reply

Originally posted by onick:
do you have headers? Could be heat soak. starters don't like getting really hot, maybe put heat wrap on it. Yes, I do have headers, but it cranks over easily w/o any slowing or hesition. Thank you for the tip.

Originally posted by Cammin1:
Carbon on the backs of the intake valves. Gm top end cleaner or Sea Foam will help it alot. When I replaced the plugs two days ago, there wasn't any more than normal deposits of carbon on the plugs, and threr is only about 20,000 miles on the rebuilt engine. Thank you for taking the time to help.

Check the available voltage at the + terminal of the coil when the key is on and everything is up to temp and the engine is off and won't start. Heat causes resistance to voltage flow and it may be that the resistor wire has too much resistance when warm.

It won't show on the plugs, try it. It's like $6 and I promise you will be suprised. Follow the instructions for the down the carb method. I'm 90+% sure this is your problem.