Cam and headers in an 87 454 tbi truck?

[Jonboy]

Originally Posted by Jim85IROC

If the regulator is doing it's job, how is the bigger fuel pump going to help? It's my understanding that the TBI pump is perfectly adequate, but the fuel pressure regulator can vary anywhere from 9-12 pounds stock.

I was told differently. It seemed to make a lot of difference in the drivability on my 82 Corvette, which is basically the same system. The system should be @ at least 13 psi.