[ztarum]

It is an electric fuel pump (Holley "RED"). There is no regulator or gauge. The holley pump has an adjustable relief valve with a maximum pressure of 7 psi.

There are no drivability problems. Idles fine when warm, and runs strong.

The main reason I suspect the fuel is boiling out is because when I run the fuel pump and fill the bowls when the car is cold the level holds. I would think that if there were a leak the gas would disappear if it were hot or cold. In my case I don't have the problem when cold, or even after short drives. It's only after then engine is fully warmed up and the car has been run down the road for 15 or 20 minutes.