We know the 216 is toast. I wont trust the 235 he got unless the machine shop says its good... So i found a running 261 that is on a test stand. Looking tmrw. Only issue is it falls flat when you give it gas. May need the carb rebuilt. We will see. Otherwise good oil pressure and sounds great with no ticking... 500 bucks. Time to see if i can get an adapter for it. Research time. He wants to be able to get it on the highway at least doing 55. So maybe some gears out back to help. Dual master for safety. Stovebolt website had some good info on what you need to do to convert it. My 41 is still going strong but a bit slower now. Wife wants divorce. Lots to juggle.