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...based on an old 24ft Fiberform with a chevy 350, I would guess your buring 15gph .  I'd pick a higher number, but your cruising about 1000rpms less than my small block.  

That boat cruised at 24-26mph at 10-12gph burn rate.  That's with a brand new V/P engine and duoprop.  It would hit 33-35mph at 4500rpms, but I never ran it that hard, so don't know what kind of mileage it got at that speed.

For a planning hull the size your running, twins or a diesel would probably be a better set up.  Sounds like a nice boat though.

Message Thread:

• Fuel consumption trivia Ak Steve Feb 16 2005
  • Actual consumption is Ak Steve Feb 18 2005
    • Ouch! DreamCatcher Feb 18 2005
    • no wonder jklingel Feb 18 2005
  • My guess... BW Feb 16 2005
  • I guess you won jklingel Feb 16 2005
    • oops. that is "I guess you WON'T..." jklingel Feb 16 2005
      • 17 GPH Arcticwildman Feb 18 2005
        • Fuel meter Ak Steve Feb 21 2005
          • fuel flow meter skydiver Feb 21 2005