Haven’t had my project for that long (81’ 750C), inspected the engine recently, and it’s not good. Cams are banged up and way out of time, clearances are all wrong on valves and bearing caps, and it seems like the previous owner didn’t know what they were doing and stripped the threads off of FOUR bolt holes in the head. I’ve got a mint roller but no engine. Do I try and source a better condition DOHC, go for another swap, or get out. I’d like to see her run but parts are hard to come by (and expensive now) and I’d rather not risk another lie at my expense or send anything to a machine shop for a cheap old bike.