I have a 87 Z28 Iroc just restored with 330 hp GM performance Engine and kept TPI with the help of Scoggin and Dicky manifold for vortec heads. This is my problem I was talked into a Holly fuel pump instead of a factoy. When the car gets hot the fuel vapor locks anyone else have this problem!

 

if you have headers than wrap them in insullation as well as your fuel lines. I picked up a 10th in the 1/8th mile in my car.

 

I have had them ceramic coated and I have wrapped the lines! The fuel is hot even in the tank! the fuel filter is even so hot it burns your hand.