I've seen a lot of post about how the top of lower unit should be even with the bottom of transom is my motor too low? It's in the top hole so I could raise it?
Maybe...is that a false hollow bottom? Anti cavitation plate should be even with the bottom of your motor is clamped to the transom, higher if it's on an offshore bracket.
not a false bottom, just the end of the motor pod for a pontoon. Mine is just an open rectangle, no vertical structures.
As mentioned, a pontoon is different. You need to run it and see what the WOT #'s are. Check for ventilation issues and trimming issues, if any, especially when turning at speed.