Have a problem with 5700-6200 RPM hitting rev limit. Actuall ignition rev limit is set to7200 and the fuel is set to 7500. No 2 step. No stage injection..Using PE850cc injectors and 2.5 longblock on 03 WRX with 2.0 intake manifold. Denso iridium spark plugs, Perrin FMIC, Perrin GT35R Kit. Fuel pressure is set to 45. Duty cycle shows about 52 percent at 6K rpms when it cuts out.

Anyone else expeirence this problem or know how to solve this problem?

Check to make sure you don't have a boost limit enabled.