1996 gmc hard start hott

hi i have a 1996 gmc sierra it has about 194000 thousand miles on it it has fuel problems every time the truck is hott it is hard to start when cold starts right up when hott you have to crank it a couple of times it has a new fuel punp and fuel filter fuel pressure is around 62psi i was wandering if anyone can help me out

found the problem fuel pressure regulator truck runs and start mint it it sucks replacing it on a vortec v8 but its done and it worked