1986 Cadillac Cimarron wont start affter overheat

First thing how hot is this car getting? And why? You should check fuel pressure and a few other things in the ignition system like dist cap, coil, pickup coil, etc. If you don't have the stuff to do this then take it to a pro. But fix the overheat problem first as alot of cars overheat and then won't start beacause they are just to hot.