I really enjoyed this Discovery episode of Wheeler Dealers 2015.  It's about a refurbishment of a 240z automatic into a proper drivers car.  If you are interested in seeing a couple of guys swap out an automatic for a 5-speed and do a mild cam swap, this video is for you.   Sit back and enjoy this full episode.   https://www.youtube.com/watch?v=V8G8s-LwCco