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Message: [QUOTE="FX4 F2-Fifty, post: 337340, member: 245"] To have pressure there must be resistance. In theory,in a regulated return the regulator should be the restriction that determines pressure between the pump and regulator and all excess should go back to the fuel tank. The readings were taken key on, engine off. But i did go drive it with the gauge before the heads and it never budged from 100+psi even at WOT. This is what i believe is happening as well, when i have the truck apart next week(hopefully) will will remove everything and check them. I will probably drill out the banjos, or possibly order some from Strictly just to be certain. And if the problem still persists, i might have to order 90fittings for the rear of the heads and have new lines made. I hope, but dont believe this will cure the problem 100%. But if i can get the pressure down to around 70psi i will be happy. If all else fails, i will probably be doing this, I will just use the test port on the fuel block and run that to the regulator to bleed off pressure. The 2nd idea is great, but i really dont want to reroute everything and add a second regulator to an already crowded engine compartment. Another thought: Am i thinking i have a problem when in reality i might not? Has anyone else every checked their fuel pressure before the heads that has the fuel block deleted and a fuel-lab or a1000? Because if one was to just read off the regulator, they would never know and think everything was fine(exactly what i did). It still amazes me how much useful information there is available on this site. PSA FTW!:rockon::rockon: Thanks everyone for the ideas and explanations! [/QUOTE]