Fuel Pressure?
 

Does anybody know at what fuel pressure the relief valve opens on the Airflow performance electric fuel pump? It's for an IO-360 (200hp) so the high psi pump. I'm trying to calibrate my engine monitor (AF2500). I can obviously get the 0 psi value put was wandering if the 30psi setting from the factory is accurate. Since I can turn the pump on and hold stable pressure once the relief valve opens I can verify the pressure reading in the cockpit.

Cheers,

Bill
RV-8
IO-360A1B6