Kane, The factory spec is the same 47-54 static, Which means engine running, vacuum hose to regulator removed and pinched to prevent a vacuum leak.

BTW, for everone using a Rising rate FMU (such as the Vortech) Your static fuel pressure will be higher due to the FMU adding a restriction to the return line. Mine was around 55psi with a Vortech FMU and stock regulator.




Edited for accuracy

 

NB: The Comptech FPR doesn't sit downline of the stock FPR like the Vortech. It completely replaces it.

Where the stock FPR sat you mount an adaptor and run a braided fuel line to the Comptech FPR.

 

Doh, I forgot the Comptech replaces the factory regulator.

 

I AM USED THE AEROMOTIVE FUEL REGULATOR 1-1 AND 680cc INYECTORS AND THE GREDDY E-MANAGE!!!!!!! 300 HP PLUS ASEGURADO!!!!!!

 

the helm manual says 320 - 370 kPa (3.3 - 3.8 kgf/cm^2, 47 - 54 psi)