More than 70, plus there are plenty of driving tips on using the trim to control the hull on this site. Try the search feature and once you have an idea, and a few hours on the water, revisit here and most everyone will be glad to help. Water pressure will be no issue as the case has nose gone pickups. RPMs are based on the propeller, so what do you have? Jack plate is the height to where you have only a slight amount of torque on the steering wheel running on top end.
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