Thanks for help. I am definitely going to change prop. Still not clear about Tempest Plus vs Fury. From what I have read, for same rpm, Fury should be 1″ pitch lower than Tempest Plus, ie, 25 Fury =26 Tempest Plus. I am having trouble understanding that since the Fury is a 14 inch prop and the Tempest Plus is 14 5/8 inches. Seems the equal pitch Fury would turn more rpm than the Tempest Plus??? I am only turning 26 Tempest Plus about 5200-5300 rpm (on the factory tach) and top speed on GPS around 72—probably a little less with the hot water around here right now. I set transom height by raising in 1/4 inch increments engine until I started getting slippage out of the hole and then dropped back 1/4. I haven’t measured PtP but it is probably in the 2 1/2 to 3 inch range. These numbers would indicate I needed a 24 inch Tempest Plus to get to 5600-5700 rpm. Following the 1 inch less rule, that would mean a 23 Fury. My boat is not loaded heavy but has 1 power pole, Ultrex on bow, and large Optima batteries (3x about 75 pounds each). Does that sound right to you?
I don’t have the luxury of testing props so need to get it right.