Another about stock fuel pump pressure

[450bench]

Seems like every stock replacement fuel pump I install has insanely high fuel pressure. Big block or small.
Latest was an AC Delco 40987.
Car ran ok but couldn’t keep the floats down. Put a gauge on it, 9.5 psi. Unreal. Surprised the quick fuel could remotely handle it. Got it down to 6 and now the car runs great.

Everything from now on gets a regulator and gauge.

 

[cadillac_al]

I always buy Carquest fuel pumps and they are always right on 5 psi.

 

[Coadster32]

I had a similar problem. At the time, the best bang I thought was the Edelbrock mechanical fuel pump. It only puts out 5.5psi. Was less expensive than a decent regulator and decent gauge. It is also clockable for clearance issues if needed. Had it on for over 5 years, and no issues. My carb is an Eddy, which are very sensitive to pressures over 6psi.

 

[450bench]

Both points above are good to know.

 

[Chevyforever]

Is it possible for an OE/ stock replacement fuel pump to suddenly increase fuel pressure ?