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    Changing gear ratios -vs- prop size

    I have a 5.0L Mercruiser Alpha 1 w/ Hirel TBI on my 19' Rinker runabout. Currently has a High Five 21P prop and the hole shot is weak, struggling to pull a slalom skier out of the hole. Turning 4,800 RPM WOT and about 3,000 RPM hole shot while it sits there pulling the skier out of the water...
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    Wife said "smaller boat", not "bigger truck", but is V6 OK?

    LOVE my boat: Chaparral 21-footer with 260 HP V8. Problem is she is a bit much for my aging Grand Cherokee to handle, to the tune of a $2000 transmission rebuild last week. Looking to scale down to something more manageable in the 19-foot range. Finding that alot of the boats in this range...
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    1984 Merc 4cyl/140hp bogs down

    Have read thru the other threads on this topic, so thanks for the insights. To recap, my engine idles/revs great with no load and runs great once it planes out and reaches some RPM, but bogs down badly during holeshot. I had a good local boat shop do a tune last summer and they also rebuilt...
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