I am wondering if anyone can help me out. I have a vehicle with a swapped 95-2000 Chevy 350. I believe it was from a suburban and is tbi. Here is the recent issue... When the engine is cool it will start right up. It drives great, although I don't ever really drive all that far. When I park and turn the engine off after driving far enough to have the engine warmed up and try to start after 10 min or so it will not start. It cranks strong but will not turn over. If I let it sit for an hour or more it will then start. What is the problem?