jwclbi, the chine-walking is fixable several ways, but the simplest way is to attach two 2"x6"x .5" honeycomb-brass grounding plates on either side of the keel line about 18" forward of the transom and about 9-12" apart. You'll lose only about 2 mph, but the boat becomes a LOT more stable.
I did this back in '84 to a 20' MA that had a 2.4L 240 hp Merc on the back. It dropped from a top speed of 73 to a top of 70-71, but rode rock-steady in a light wind-chop.
I did the same thing that year to an early Checkmate 18' that was old-style, ie; no pad, just V hull all the way back, and it steadied it out, too.
Besides, they're great for your electronics in case of a near lightning strike
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury