Just sharing a method to check either the engine is lean or rich. If u have the tuner with datalog or etc... better go for it! For me, simple method to check just by looking the spark plug head. If too WHITE = LEAN (LESS FUEL) too BLACK = RICH (OVER FUEL) the ideal is more about ABOUT YELLOWISH.
Read somewhere, For stock EVO VII fuel pressure is = 43.5 psi (vacuum off)