Hey,
I’m new to this page but am hoping for some insight on why my rail pressure is dropping below 1000 psi during WOT.
The car has upgraded 17t turbos and is FBO with a Walbro 450lpfp and has a recent ishly new hpfp from fcp euro. No other fuel upgrades.

I am wondering if it’s quite common to run into a peak for fuel delivery on the hpfp at this level of power or if maybe my hpfp is struggling ? Thanks in advance.