Do Adj Fuel Pressure Reg increase FP under boost?

[GTLee]

Hey guys,

I have a BBK adj FPR installed in my 5.0. I also have a BD-11A blower running at 11psi, 190l/hr fuel pump, 24lb injectors (incase it's not in the signature).

I know that the FPR will lower the FP under vacuum but does it raise FP under boost (ala an FMU)?

Also how bad for my fuel system (pump, injecters, rails, etc) will it be to run at 55-60psi (vacuum off) all the time and run w/o the FMU?

Thanks guys.

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-Engine: K&N, 75mm MAF with 24# Injectors, 65mm TB, Trick Flow Street Intake, 1.7 Roller Rockers, Adj FPR (set at 35psi), 190lph FP
-Exhaust: MAC 1 5/8" Headers, Catco 2.25" h-pipe, MagnaFlow mufflers
-Drivetrain: World Class T-5Z, Aluminum Driveshaft, 3.55 gears
-Suspension: Subframe Connectors and K-Brace, KYB Shocks and Struts, BBK Upper and Lower Control Arms
-Dyno: 208.7rwhp, 262.9ft/lb torque