I have quintiple checked my FMU to be hooked up correctly (pinched the return line and pressure did build). The vacuum reference has a dedicated line to the intake. My fuel pressure still does not climb though past 50psi under 5lbs of boost. The only other thing I can think of is maybe the pump is hooked up backwards. Can someone please post/email me a couple pix of an inline pump hooked up. I will post pix of mine for people to see if in fact it's correct or not.