Dump the Racetronix pump and get a DW400 if you have the cash to, because the Walbro-based pumps lose about 30gph in fuel flow from 40 to 80psi. DW pumps lose about half that.. Arizona GN is a Deatschwerks vendor and could get you a DW pump.
To answer your question though, the 237 most likely wont be an issue if you're only putting 400-450lph of fuel through those lines...