fuel rails

  1. gw77

    350 LPH pump OK for stock fuel pressure regulator? (Aftermarket pump, stock rails & FPR)

    Hey all, TL;DR: Can I run a 350 lph inline fuel pump into the stock Mustang fuel rails and FPR on my 5.0 twin GT35R RX-7 and still expect the FPR to regulate around 40 psi, or do I need an upgraded regulator? If there's a simple answer, sweet, /thread. But this is my first time doing any...

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