I have decided to make the move from my current 582 and go the four stroke route. I have a Kitfox IV 1200 and wanted your take on what in the way of four stroke engines would work in a Kitfox IV. I know about the 912s, which are definitely in the running, but I would like to explore as many options as possible. I was wondering if the small Continentals would be too heavy for a IV. Any information you could provide would be appreciated.