Fuel Pressure Falls After Launch

At the track, from the launch to mid-track, fuel pressure is steady, but then down track, it falls 2 PSI or more, what’s wrong?

This issue often points to a fuel supply problem, not the regulator. If the pump can’t provide enough volume, fuel pressure drops, even with a static regulator. Before blaming the pump, check for supply line issues, ensure the tank vent is working, and verify the pump’s wiring and electrical system performance. If problems persist, consult a technician for a field flow test to confirm pump performance.