For those of you who have a return fuel system, there is an adjusting screw on the side of the regulator that allows you to set the fuel pressure. I was able to bring my FP up to 55 psi from 49. One way to test is to clamp the return line shut and you should see the fuel pressure spike over 100 at idle.

Cheers

 

I figured this be useful infor for those struggling with their fuel pressure as I stumbled on it by fluke.