As suggested by Captain Fred in his blog entry on his 1940 Plymouth build, he wanted something done on cams.   Well, that can be quite a topic, and while you can find all kinds of article on the "inter-web" on how cams work in an engine, my goal is to put a Flathead Mopar slant on the topic.   Of course as my Grandfather used to say, an engine is nothing more and a large vacuum pump. Your cam turns lifting up intake valves, as pistons are being turned by a crank and that cre