How much fuel can the stock fuel system support?

The truck is 2016 2500, DRD corrected.

I wanna delete the fuel rail return valve, put some bigger injector nozzles (60 or 90 hp?), and possibly the "bag of parts" upgrade to my HP pump from Industrial injection.

This simple upgrade claims a 15% fuel increase.

DRD claims that his tunes support up to 100hp over stock for injectors, but what will the factory fuel pumps keep up with?

60hp injectors and the "bag of parts" put me at roughly 30% more fuel over stock.

This combo sounds good to me.

Thoughts?