I have a 2002 Tahoe Q3S/F (17' 10")with a 90hp MercuryELPTO. With a Michigan Wheel 13 1/4 x 19 prop the rpm is 5250 WOT. Max speed per speedometer is 39mph with one full fuel tank and driver only.<br />I want more top end speed and ability to tow skier and tuber with a pasengers in the boat.<br...
