[Franksanzo]

Hope this helps my bracket is 12" up from keel I would go 13" or a tad more
My bracket height where it hits boat is 15" but ur bracket may be different
I'm all the way up on my holes I even had to redrill higher ones
My thoughts on getting more floatation are the same as most on this sight but if u don't get the lower unit as high as possible when on plane it will never find topend ,highest efficiency and u will never figure out right prop also will feel like a tugboat hope that helps
Can't give u top measurements because my transom and sheer where changed and crowned