Sniper
Canadian Rust Bucket
I'm a tinker, so this kind of stuff intrigues me. This is really about small single cylinder engines, but much of the info can and will transfer over to automotive applications. If your into this sort of thing, it gives good info on custom systems that could be used in racing or up dating older point systems. If your not sure how something works with ignition systems, this might clear it up for you.
www.gardentractorpullingtips.com/ignition.htm
www.gardentractorpullingtips.com/ignition.htm