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marine carb

Old 02-10-2005, 06:57 AM
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Default marine carb

how do you identify a marine carb over automotive
have a holey 850 cfm,from numbers found on it i believe model#4781-5 .........1226 also stamped on.
thank's JP.
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Old 02-10-2005, 07:39 AM
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Default Re: marine carb

Holley publishes that information on their website. Very simply though, a marine carb is going to have "j" style vent tubes.
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Old 02-10-2005, 07:39 AM
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Default Re: marine carb

The easiest way to tell a marine holley versus an automotive holley is that the marine version vent tubes are j-shaped so that if a float sticks the excess fuel is dumped back into the carb and the automotive version are angle cut straight tubes.

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Old 02-10-2005, 01:02 PM
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Default Re: marine carb

A 4781 carburetor is an automotive carburetor.
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Old 02-10-2005, 07:24 PM
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Default Re: marine carb

Hi Doug!

Didn't realize you were on the board. I talked to you today about speccing a carb, thanks for the help!!

It's ordered.. Expect it in Monday
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Old 02-10-2005, 10:08 PM
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Default Re: marine carb

wath's the cost to get it marine or is it cheeper to replace it ?
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Old 02-11-2005, 10:26 AM
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Default Re: marine carb

Scott,

If you have any tuning questions once you get it, let me know.
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