The fuel pump rate is determined by the pump in the car, not the motor. As for the FPR, you may want to bump it up a few PSI at idle, but I'd get a VAFC and have the fuel adjusted on a dyno to be safe.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
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