"I have a 1985 23 Ft. Sea Ox w
"I have a 1985 23 Ft. Sea Ox walk around cuddy with a 200 Black max (86 or 87? no serial sticker and rebuilt power head) mounted on a Gil bracket. At about 3000 rpm my prop cavitates and I loose my bite on the water, with plenty of throttle left to go. The prop is...