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holley fuel pump fitting

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Old 04-23-2006 | 08:52 PM
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Default holley fuel pump fitting

anyone know size of fitting that screws into holley mechanical fuel pump to mercruiser hard line. The flared fiting on the merc pump is smaller.
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Old 04-24-2006 | 06:05 AM
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Default Re: holley fuel pump fitting

I believe Merc is 3/8 and Holley is 7/16. Next size bigger. Or is it 1/4 and 3/8?
Just take the fitting out of the Merc pump , go to the hardware store and buy the next size larger.
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