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Message: <blockquote data-quote="G Lap" data-source="post: 236724" data-attributes="member: 6268"><p>If your anti-cavitation plate is currently sitting 1 1/2" below the bottom of the hull, I think you would benefit from blocking up the motor . . . as TurboTodd mentioned. I have a 1648 welded boat with an older 25 HP Evinrude, and I blocked up the motor with square aluminum tubing to bring the anti-cavitation plate up and even with the bottom of the hull. According to the GPS from my truck, I am getting 30 mph. When your motor sits low like that, it is just adding extra drag. This is an easy and cheap step to take to see if raising the motor helps you out. If your clamps get close to the top of transom, be careful and bolt the motor down as soon as you are happy with how it runs.</p></blockquote><p></p>