Yeah, those cams are only supported at the ends. why they didn't go with split shells. they bored the bosses, just a few more machining steps is all it would have taken. it would only have raised the cost of the engine by a couple hundred bucks, but it looks like it can be modified. Conley made a nice 1/4 scale blown V8 model engine, but they were several thousand dollars. I don't know what happened to Conley, but I haven't seen anything recent.