We once had a '71 Reinell 19 footer with a Mercruiser 250 - I do not recall carbeuration other than it being a two-barrel, but recall that this thing would yank up a skier with no problem, and would cruise endlessly at 4,000rpm - plus, it withstood a number of overheats due to the ultra-wimpy coolant impeller that Merc had in the stern I/O drive.
