Won't Start

Car Starts Fine Cold But It Wont Crank At All When Hot
I Am Running A Stock Distributor That Has Pertronics Guts
Not Sure About The Reluctor
I Have Brand New Holley 600 With.the 1/2 "woden Spacer

Lets back up a bit, are saying that it doesn't turn over when hot or it turns over fine but won't fire up.

Terry