The WOT rpm has everything to do with overall performance and holeshot. Sounds like you need to go down in pitch to get the best performance. Every degree of pitch you go up or down you will loose/gain 200 rpm's.The HPDI should be at 5,500-5,800.The diameter of the prop also comes into play. On a bay boat you want a large diameter to carry the weight. Do you know what brand of prop that is? On a bay boat your best performing prop is either a yamaha saltwater series 2 or a mercury mirage plus,both 3 blade props.
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