69 chevy c-20

I have a 69 chevy c-20 pickup with a 250 engine that when the motor gets hot will not start i cant even jump it off. Please somebody help me please

So it won't start when "hot". Does it "crank" and just not "fire"? Or does it not want to "crank"?

Jim

Make sure the vacuum advance on the distributor is working. Use a hand vacuum pump and be sure its moving. I've had them stick and the timing is advanced its very hard to turn over.
Add more information so it can be determined exactly what your problem is caused by.

THE truck was not running for 12yrs so i put new fuelpump had carb work done cleaned out gas tank it will start up but once it gets hot will not start even if u try to jump it off but if u go to start it the next day it will fire right up till it gets hot something drains battery it takes 1hr to recharge

Since its been sitting, check both battery cables for corrosion or just replace them. It might be the starter, which is cheap and easy to change. I'd have a big time trust issue with all of those items. Have the charging system checked once you get it running more reliably.

Bob