twins are way to heavy on these boat's stick to one motor the last several with twins were slugs and super stern heavy. twins 140's don't truely mean 280 hp closer to 180 to 210 hp in a super heavy package. your twin 115's would be close to 140 to 160 hp, but you twin V4's would weigh 1000 to 1200 lbs plus 8 carbs to feed vers a single V6 150 to 225 would weight in around 65o lbs and only 6 carbs to feed. twins don't add evenly when rated together, you would be better off fuel mileage and weight wise go this a 175 or 200 even a 225 would way out perform the twin 115's or a set of 140's.
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1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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