Holly Marine fuel pumps.
#1
Charter Member #232
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Thread Starter
Holly Marine fuel pumps.
I think I have a fuel leak in one of my fuel pumps on my Merc 420's. I have two sets of Holly mechanical fuel pumps that I could swap the stock ones out with. The 420's have the Holly carbs. When I first got these pumps I put them on my 330's and they over powered the floats so I had to put a regulator on them with a guage to get the fuel preasure down. Will I have the same issue if I put them on my 420's or are the Holly carbs able to handle the higher fuel preasure?
Thanks
Jon
Thanks
Jon
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#2
Registered
Holley makes 7 psi fuel pumps for use without a regulator, they also make higher pressure pumps (15psi) for use with a regulator. A 7 psi pump should work with a Qjet, Weber, Holley, etc carb fine.
#6
Charter Member #232
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Thanks Rookie for the offer that is very nice. I Have regulators just wanted to not use them if I do not have to.... I guess I have all the lines made up so it would not be that big of a deal if I have to use the "new" lines. Would they be the same going from a Q-jet to a Holly?
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#9
Charter Member #232
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