I am rebuilding a 1972 19' 6" AS and was wondering if anyone has info on how different sized outboards perform on this boat. I do not even know what size engine would be considered max for this boat. The guy I bought it from had a 150hp on her. I am considering a 4 cyl. rather than a 6 for the weight saving but am open to options. This may be a bit academic in that I will most likely use what I can get my hands on used, at least until the day comes when I can buy a new 4 stroke or better yet E-tec. I have rebuilt OMCs before so that might be what I stick with, really just looking for some idea of performance based on HP. Thanks.