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The mercury website lists max rpm for my 150 optimax as 5250-5750. When sizing a prop do I try to shoot for 5500rpm? My dealer moved my motor up 2 holes and he's suggesting a change from a 14-1/2" 17" 3blade prop to a 14-1/2" 19" 4 blade. how does this sound to you?
My boat is a Tahoe 215 ob...
