I don't know if you're interested, but as I'm still a noob I've been trying to find out more information about converting my CJ3a to run on unleaded fuel. I think it's safe to say that I knew next to nothing about the process.

This last season's Wheeler Dealers went through quite a bit of detail about testing and updating the engine of a leaded-fuel engine and its conversion to an unleaded fuel. Granted it's for a Triumph TR-6, but I thought the process was fascinating and very helpful to see what the tools are that they use to do the work.

At least, it's a very good use of 5 minutes of my time. YMMV, of course.

Hope this helps,