I put my 25 hp mercury on it and have been running with that the last couple trips out, and WOW that thing is scary fast. Thinking about somehow restricting the throttle so it can't go wide open because I don't always trust myself. At the very least, I need to put in a kill switch.
I am thinking that it is too much motor for this boat. I also noticed that one of the cracks has opened back up at the transom corner/gunwale. This motor weighs only 17 pounds more than the old 9.5 I was using so I don't think weight is the problem. I thought the transom wood was still good, but maybe this should have been replaced with some solid oak or something. I'm getting the crack welded again next week, so hopefully that will just take care of it.
I think I'm going to use this setup for a couple years, then start keeping my eyes open for a 16' or a wider 14' to fix up. My wife will kill me if I start looking for a new boat now.