Re: Proper psi at carburator

Posted by Owen_Dyneto On 2011/5/3 15:27:07

You've already got marginally more psi at the outlet side of the pump than you should have - borderline enough to overwhelm the needle and seat. Your problem lies elsewhere.

The factory mechanical pump at 3-4 psi should supply enough fuel to go as fast as the car can go and sustain that speed. Pinched line? Undersized line? Failing rubber pump inlet hose? Floating crap in the tank that blocks in suction line? What's the float level setting?

I guess you have an electric pump and that's why you needed a pressure regulator? Why an electric pump? And how is it installed? But chances are your problem is related to one of the above.