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Old 11-19-2012, 08:50 PM
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You need significant engine horsepower increases to see a gain in boat speed , on the water.
The tunnel ram works very well on boats and will make the most power on your motor.
But do not make the mistake of choking it with tiny carbs. Use two 650's or two 750's
on it. Two 750 edelbrocks would be cool.
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