Thread: Thread size for vacuum port on Offy BA 4 barrel-intake under carb mount base?
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Old 09-20-2024, 05:48 PM   #3
19Fordy
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Default Re: Thread size for vacuum port on Offy BA 4 barrel-intake under carb mount base?
Anthony; Is the port you are asking about the one in the lower left (1st photo) of this 390 Holley (4160) List 8007 with the rubber cap over it? If so it appears to be pressed in, not threaded. The same is true of the other port for vacuum.
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Last edited by 19Fordy; 09-20-2024 at 05:59 PM.
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