Guys
looked at the wolfkatz link and with their setup on 550 injectors they had the stock FPR.
only after increasing the size of the injectors do they change the FPR. Is that correct.....
On the EPC the turbo and N/A regulators are different numbers , so l would assume that the Turbo one is bigger . Would it be ok to use it or just get an after market one like theirs.
Remember i know **** about regulators be gentile with me

I'll get the walbro high pressure 255 in tank and 440 or 550 injectors.
Remember stock appearance.
Is the adjustable regulator there so the tuner can dial a bigger number to support the fuel being used and maintain constant pressure