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A note to all who may be attracted to the title of this thread, I wanted to post a generic note to be helpful. It is a tendency for auto parts guys to relate to marine motors in auto terms, and this invariably leads to over-carburation of the motor.
Since a motor is an air pump, naturally the faster it spins the more air it pumps, and as we all know, few marine 427s, for instance, are spinning at the factory automotive redline of 6,000 rpm. Therefore what may be appropriate for an automotive use, say a 750 cfm carb, is waaay too much for the same 427 in marine form, spinning at only 4000 rpm. The stock carb on a marine 427 is a 625 cfm Carter AFB. Even that is way more than the motor needs at 4000.
Therefore, the same goes for the small block motors. Beware of what you hear at the auto parts store. I suppose you could use a new Edelbrock 600 marine carb on a small block chevy motor with good results, but any more would lead to cylinder washdown, high wear, and high fuel consumption.
Regards, Paul
"dogsharks"
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