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Well, I've just about done the planned work for this year on my 13' Whaler.

I was looking to repower, but have decided to stick with what I have for this season... so I'd like to maximise this engine's potential if I can.

It is running a 40hp Yamaha C40PLRU which I believe it is currently mounted what you would call 'one hole up.'

Will I benefit from going 3 holes up (up to the top mounting hole), or will that be too high?

Thanks for any advice!