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383S fuel pressure.

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Old Feb 19, 2018 | 01:11 PM
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Default 383S fuel pressure.

I have 77 383S. I have a 650 Holly double pumper. It has a pressure gauge on the fuel line. What should the pressure read? I just bought the car in the fall, don't know anything about fuel pressure.
thanks
John.
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Old Feb 19, 2018 | 01:15 PM
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Are you having issues, what fuel pump do you have on there now?
I wouldnt run more than 8 on a holley
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Old Feb 19, 2018 | 01:41 PM
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6 to 8 depending on what carb you are running.
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Old Feb 19, 2018 | 01:43 PM
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I don't know what fule pump is on there. But it runs about 8 lbs.
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Old Feb 19, 2018 | 01:44 PM
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It's a 650 Holly double pumper. With no issues.
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Old Feb 19, 2018 | 01:58 PM
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I have a 650 Holley DP and have the fuel regulated to 6-1/2 psi. Its should be simple enough to turn it down to 6 psi give or take a 1/2 psi. Some will say to run it between 5-7 psi. 8 is over what Holley recommends I do believe.
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Old Feb 21, 2018 | 03:26 PM
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check the pressure at 3000 rpm.. 7 psi max
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