Catalina 350 International Association

Since the problem is almost certainly in the hull design ie the prop is partially shielded by the thick stern section and far too close to the hull surely a redesign or for boats already built either grind down the thick section in way of smooth water flow or, as in my case, instal a feathering prop that sits further out from the hull. I can proceed at max rpm 3000 with only slight cavitation
Hugh