I have a 24 foot 1990 Donzi Black Window. It has an OMC Cobra outdrive with a 460 Cobra motor and a 12 pitch 3-blade prop.
I am looking for more speed from this boat. At 4500 RPMs I get 50mph max. I would like to put on a new CAM, a new carburator, a new intake, and new headers but keep the same motor.
Any advice you can give me would be greatly appreciated.