" If you plan on running the Double Barrel Shotgun (the only way you're going to push that much fuel)...the hard piping isn't going to be an issue!
If you're referring to the lines under the car from the tank to the HPFP(s)....if/when those are needed, it's easy enough to upgrade and I've been running that system for over a year. I had originally intended to make that part of stage 3, but the dual 450 parallel bucket took that slot. Stage 4?....maybe.
Getting enough fuel to the HPFP(s) will not be a problem.