FYI, I did this based off what GW told me. Basically, in 2001 they moved the scuppers up 1.5" on all hulls to accommodate the heavier 4 strokes outboards,
so I did as well on my boat...
looking at a pair of g2 150 for my chase 267 weight is 530lb each. I think if i relocate the batteries under the helm i should be fine. How does it ride with the heavier engines?