fuel pressure?

[professorpat]

What is the best fuel pressure? I seem to have too much, blowing by valve. I am currently running two 94's and not happy me or the enging.
Are 97's better, if so or not who is the best rebuilder? Help.

[Vic Piano]

If you are running an electric fuel pump you need to install a fuel pressure regulator, I'd set it at 2.5 lbs., that what I use on my single as well as multiple carb set ups with 94's.

[mike42]

I have mine set at 2.5 psi and it runs perfect !

'40 85 hp

[ford38v8]

1 1/2 lbs is really all you need unless you've got a rubber tipped float valve that you need to change out anyway.

[ken ct]

Originally Posted by ford38v8

1 1/2 lbs is really all you need unless you've got a rubber tipped float valve that you need to change out anyway.

1 1/2 to 2 # i would use. Also besides the rubber tipped inlet needle deep six the rubber accel. pump and the 7.5 power valve. All components of China made cheap kits. OMO. ken ct.

[G.M.]

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Low fuel pressure makes the vapor lock with this new gas worse. 3 1/2 lbs helps this problem. Also you will find 3 1/2 lbs drops as the fuel pump get hot. At 1 1/2 lbs cold in 85 plus temperatures you will have problems. Put a gauge in the line to the carb and you will see what happens. Keep the pressure up and with Bob Shewman's 1/2"vented spacer it will help the problem. G.M.