reviving old seacraft (propeller question)

[bitsamonkey]

It's been a while, but it's taken me this long to get the old Merc 200 running right (new stator, trigger, switchboxes, rectifier, a bunch of tuning, timing, syncing, and a set of much nicer carbs off of Ebay)!
For those who recommended the 19 pitch prop...right on the money. 43/44 knots @ 5500. I went with an inexpensive Michigan Wheel aluminum 3 blade.
Now my next issue is the chine walking. The cavitation plate has one of those doelfins on it. Good or bad? It seems overkill as the boat jumps on plane with the engine trimmed down. Is there anything I can do besides trim tabs to help the boat ride level? It seems to want to fall off onto its port side a lot. Thanks for your input.