A little different then your powerboat but I put a I/O in my pontoon, Not knowing anything about X dimension I set the Keel to be even with the bottom of the boat. Now that I'm changing from a 140/Alpha to a LS1(hopefully supercharged)/Bravo I'm wondering if I did this right or should i be changing it.

Whats everyone thoughts.

You can kinda of see in this pic the depth of it.