Looking At An 88 Sea Ray Amberjack 270. Boat Has Twin 4.3 Liter...190's ?? I Think...
Anybody Have any Idea approximately how many gallons per Hour She Might Use ??
That sounds like a good starting point. That's about what I burn with a normal load. Searay's archive lists that boat at 6570 lbs. dry. Mine is about 800 lbs heavier, but my motors have TBI instead of carbs.