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Re: Fuel pump problems
Welcome to AF.
Are the float bowls actually full? Can you open the throttle and actually see the accelerator pump spraying fuel.
If there is fuel in the bowl, 10 psi may be a bit too much pressure for the Holley needle and seat. I recall 6 psi is about the maximum.
You can check this by unscrewing the little sight caps on the side of the bowl. When the pump is running, the fuel should come up to the bottom of the hole.
If fuel is coming out the hole, the fuel level is too high. You can adjust the float level downwards until fuel no longer pours out.
If fuel pours out no matter what you do to the level, then your fuel pressure is too high.
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