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Message: [QUOTE="FX4 F2-Fifty, post: 336260, member: 245"] After i talked to the guy from aeromotive and he said my old pump looked like it was putting out too much PSI i decided to go take a look. I checked my fuel pressure before the heads instead of at the regulator after the heads. At the aeromotive regulator after the heads i have 55psi,but before the heads the gauge pegs out at over 100psi. I have verified both with mechanical gauge as well. The only two things i can think of is the regulator, or the fuel block. I can back off all the way on the regulator and it drops to under 30 psi and i can hear the pump change pitch, but before the heads the pressure stays at 100psi or more. The pressure reading before the heads is taken at the fuel block that i had made to delete the fuel bowl. Since the truck is not running so there is no demand for fuel, when i back off on the regulator why does the pressure not drop before the heads? Key off, both pressures drop to zero like they should. [/QUOTE]

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