7875 + 5.9 + E85 + Megasquirt

The most those injectors can flow is 64lbs. You can't (shouldnt) go past 85% duty cycle of any injector as they go 'static' ie. don't close. You can increase the fuel pressure to scale up the output. Going huge on the injectors (ie. WRX injectors) also is not good on the idle quality, sort of a balancing act, but a very broad range.