Fuel Pressure Reg and Gauge

Want to install one on my 440 with an Eddy 4bbl. Best combo/brand?

hi
\ race car or street car ?

i use the electric stewart warner for street / strip cars .

what fuel pump do you have ?

Street only. I'm going to use a Carter M6903 pump and I've heard they do sometimes put out more than 7 psi. I use Rec90 non ethanol fuel.

I doubt you will need a gauge with that pump The other carter M4862 will put out more pressure and may need a regulator. I have the one you are buying and it is about 6-7 psi.

95% of the ones mounted to the motor fail. Also Be aware that it is not recommended to install one in the interior compartment. Any track will bounce you out at tech.
I normally drill and tap a Tee fitting for 1/8th NPT. I then use a known good dedicated 0- 10 or 15 PSI gauge installed temporarily to check / adjust as required. IF needed to check at WOT I'll either mount it to the cowl vent using rubber or vinyl to prevent paint damage. After testing I remove the gauge and line. Then plug the tapped port.

Based on my testing of several of them

good pump choice

the electric gauge CAN be installed inside car, that is why i use the electric one .

do not install a macanical one inside the car !

should not need a regulator with that pump

No liquid filled gauges, when they heat up the pressure reading goes crazy. My car ran for ten mins with the gauge going from 0 to 8 lbs. No change in idle. Drained the liquid out rock steady at 6 lbs. What carb? Carter/eddy are pretty sensitive to higher fuel pressure. Holley not so much.