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Old 04-09-2013, 09:58 AM
x-swagger x-swagger is offline
TT Enthusiast
Join Date: Jul 2009
Boat: Mastercraft X-45, 2007, 496 8.1 L18
Location: southwest
Posts: 219
Hey Frank,
I have the same year, boat and engine. I have found overall the 14.75 X 15.5 will be the best way to go. I usually am at altitudes from 3000-6000, and the cruising speed is typically around 26mph, with plenty of power out of the hole when loaded down as well.
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