Re: transom plate pre alpha to alpa 1 gen 1
what are the possible gotchas i will be looking at
That's the problem with "gotchas" you don't know what they are until it hits you.
Without knowing the exact SN of both engines, and transom shields, it's impossible to know what will happen. Unless you have done the swap with the exact same models. Things changed yearly on both the 140 and the 3.7.
There are lots of differences between a MC-1 and an Alpha I