I have a checkmate vision 221. The boat has an Alpha SS outdrive with just under 500 hp in front of it. I have to baby her out of the hole but once she planes out she has seen 81 on GPS. I was told that I would have to jack the motor 4 inches to make enough clearance for a Bravo. It seems to me that lifting the motor higher will give me less clearance. Also what mods would have to be done to the transom. Alphas and Bravos don't come close to matching up. Do They? Also I was told that the boat has a 21 degree dead rise but I have only seen reference to 19 and 20. Can anyone tell me for sure. Any and all info you can give me on this boat when stock will be appreciated. Also where can I get an original owners Manual?