A friend of mine told me he installed a B & G pressure regulator and he raised his fuel pressure by a couple notches. This increased his top end performance.
Does this mod really increase performance or is it just another waste of time?
Waste of time! use a stock FPR. Blinx uses one, I use one. we both have high power turbo cars. But the fuel management controls the injectors to give sufficient fuel. That the proper way to do it