I ran stock pumps, stock filter, stock fuel lines, BAP, and 60lb injectors for 3 years making 625 RWHP.
90%-95% duty cycle at 6500 RPMs depending on fuel and tune. I shift at 6000 so I was around 90% at the track.

Now I have twin GT Pumps, MGMjr, -8 line, stock rails. Now 75%-80% duty cycle depending on fuel and tune.