Boat currently has 1969 carbed 350s (points ignition) with the starboard engine and trans needing to be rebuilt. Going to cost $8000 to have the engine and transmission pulled, rebuilt, and installed. I have a pair of "low hour" 1990 (electronic ignition) carbed 454s with transmissions and cooling system I can get for $2500. Boat does have a flybridge so its a little heavier than original. Would it be worth it to go up to the 454 or should I stay with the 350s? I know more power means more fuel consumption but running lower RPMS with 454s over 350s would be how much more? 350 vs 454 reliability? Anyone with experience please chime in!
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They are good numbers and you made the right decision. My 350Q's would do that but at 3000-3200. If I recall I ran about 2800-2900 to hit 17mph. But they still wouldn't climb the swells decently.