I did a template like reel suggested but out of Lexan or Plexiglass.
Basically ran the top of the template to the bottom of the yoke of the engine and drew the holes and slots, then drilled and cut the holes and slots. Finding and measuring where the holes and slots should work for repositioning if needed.
Starting point was the cavitation plate distance to the bottom of the yoke in relation to the transom depth. Usually allowing no more than 3/4" below the bottom of the boat but seeing if raising the engine is possible a couple of inches.
Dang, I can't believe I found the one for when I raised the transom on the V for the jackplate and present engine.
