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			I think it sounds really good.  I'm like you I'd rather have the single tank than have to use two 20 gallon tanks.  Also 40 gallons won't get you very far and leave enough insurance in the tank at the end of the day.  The only thing I would point out is putting 57 gallons of fuel in the back of the boat could cause some weight issues.  Gas is 6 lbs per gallon so that is a little over 300 lbs.   How far up the sides does the U shaped tank run?  Would the majority of the fuel weight be in the rear?  Just something to think about.
		 
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1994 Wellcraft V21
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