With a vessel in that age category, the only way to get an accurate read is to fill the tanks, cruise them down to 1/4 tanks, and keep a log. Refill, with the expectation you will take on 140 gallons. Different engines will perform at different ranges, even if the same brand/model. Way too many variations here,- boat hull condition, tune up schedule, throttle habits, drive alignment, transmission condition, quality of fuel, wind, water action, to name a few. One rule of thumb is 1 mile per gallon. You have 188 gallon capacity, assume 350 Crusaders because that was what a lot of the 94's had installed with BW V-drives, an average of 3200 RPM. So, a purely generic answer would be 188 miles. Absent the practice above, that is all I would expect for planning, and I would not exceed 159 miles before I would have access to a fuel source. Good luck.
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so I’m a new owner to a carver 32 convertible and I’m just trying to figure out how far can I travel on a full tank of fuel ? Any help on this will be greatly appreciated!