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I am about to raise the height of the E Tec 115 on my 1991 17' Outrage. Whaler recommends the usage of the 2nd hole which would be the 2nd lowest height for the engine. From what I read in this forum most people prefer using the 3rd hole which would be 2nd highest position for engine. Right now the engine is mounted on the 1st hole, lowest mounting height. What I notice is my RPM at wide open is 5000, sometimes only 4800. I am using an aluminum prop. I don't mind changing out the prop but I want to make only 1 change at a time and that change is to get the motor mounted higher.

All things being equal what will I notice if I go the the 3rd hole versus the Whaler recommended 2nd hole? Is a higher engine going to necessitate going to a stainless prop?