I used to have one. Mine was a 1976 in a Slick Craft ss200. It was a great engine. Loved it. Did some work on it myself and upgraded the ignition to a Pertronix to get rid of the points etc. I still have a hard copy of the Clymers OMC shop manual 1964 to 1986. I have it on cd as well. If you are interested let me know.