6 months ago I had a low fuel pressure problem.... 48psi @idle and 56ish with no Vac to the Reg... Installed a 255 pump and Hotwire kit... SAME thing... I removed the bucket about 5 times and kept looking for a problem replaced the regulator,filter, everything ... still had pressure drop... put a scanner on it and found 110% duty cycle.. that was with 10 fuel injectors.... So I ditched that stuff.. installed 60lb motrons fuel pressure its 56@ idle no Vac on reg and half a tank of fuel ... top of first it starts to drop off... back up to 56 on the Shift .. then back down .. soon as its hits third its a dead horse ! getting down into 20-25ish !!!!!! How do you Gut out a stock fuel pressure Reg? I have a aeromotive adjustable reg .. what happens if i clap off the retun line and see what happens??.. hell i might even drive it down the road and see if it helps anything