NO, what I'm trying to say is that the 100% duty cycle does not occur at peak horsepower. The camshafts determine when this peak occurs.

After peak horsepower and at or just after redline THEN the injectors would experience 100% duty cycle.

Simply replacing these with 10% to 20% bigger injectors SHOULD yield some additional permenant power as the injectors would be able to give more fuel at top end and around peak horsepower. Fuel trim or not, if the injectors are reaching 100% duty cycle at or just after redline, then having them a bit larger may yield some higher RPM gains. Everything below peak power would be higher power until the fuel trims compensated.

Cheers!