Hi. Im building a new fuel system that needs to flow for 400-500 hp and Im not shure what pump to use. I got a walbro 255lph right now, how much will it flow for? Im guessing it wont flow enough?

So Im thinking of running dual walbros instead but how will it work with only one 6mm fuel line ( 0,23 inches) 6mm is the inside measure btw.

Also Im using the standard primary rail with the pulsation damper, will it flow enough?

I will be using an aeromotive FPR.

Thanks!
/Kalle