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    New prop still ventilating

    I have a 20’ 1997 Tahoe Alpine with a 2002 Mercury 50ELPTO 20” shaft. I bought a 3 blade10.8 11P propeller. The motor is as low as it is going to go on the bottom screw hole. WOT the cavitation plate is about 1” below the surface and a couple inches below the motor pod. I hit around 15-17 miles...
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    Can I legally increase max HP rating with a tritoon conversion?

    I have a restored 1997 20’ Tahoe Alpine with a max HP rating of 80HP. I know it’s not legal to go over this, but if I convert to a tritoon can I legally increase my HP rating? If so what is the math formula or % increase?
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