is the x calcaulation the same for alph gen 2 the same as bravo i know how to get the pitch of the back of the boat and i found the degrees and height but its for a bravo are thay the same for alpha

NO they are not. The Alpha's are about n2 inches closer together, not sure about the height. Search the web there is a template/drawing on one of the aftermarket performance parts supplier's sites, sorry don't remember which one.
Good luck