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    went from 3 to 4 blade made things worse

    Hey guys, I have a 2007 glastron 18ft F&S with 3.0 Volvo-Penta and SX outdrive. 3 batteries in back also. WOT rpm is 4200-4600. It came stock with a 3 blade alum 14.25 X 21 which was great at wot and ran 39mph (gps) at 4600 rpm but sucked off the line or when I had any more that two people on...
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