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Carb question?

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Old 06-24-2003, 09:55 PM
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Aka8953121
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Default Carb question?

What is the difference between a Holly 850 with "race calabration" and a Holly 850 with "marine calibration?"

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Joe
 
Old 06-25-2003, 07:47 AM
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Proably has a special throttle shaft bushing to prevent leaks and the vent tubes are pointed back down into the carb throat. There might be some metering changes too, but I'm not sure.
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Old 06-25-2003, 03:25 PM
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blown1500
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Marine carbs run richer at part throtle and have the vent tubes that put any flooding fuel into the venturies instead of allowing it to run out onto the engine-fire hazard, you know. If you use a not-marine carb, be sure to check your cruise mixture to be sure you don't melt a motor cruising as well as check full throtle!!
 
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