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Correct fuel pump pressure on a '30


CarNucopia
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Thanks Mark. I'm having a problem where the car stumbles after a few minutes at a contestant speed, like 40MPH. I'm hoping it's the fuel pump because I suspect that's an easier fix then the dealing with the Marvel.

If it has the original Marvel set up, 3-5 psi is all you need or want.
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Thanks for the advice Mark. It'll be a few days before I can get the car out and play, but I'll let you know if that works. It would be great to have a simple solution.

With the engine warmed up and at idle, adjust the big knob on the Marvel a half turn in to a richer mixture and see what happens at speed.
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