I picked up this Radio Shack, Archer kit at an auction. It's a performance Capacitive Discharge Ignition that you build yourself. I don't really have a need for it I just thought it was pretty cool, and it will make good trade material. It's still in the original packaging with all the parts. The assembly manual is dated 1971. It even has a bypass switch so you can run with the CDI on, or just regular ignition. This would be awesome for a period correct hot rod. Any old guys on here that have actually used one of these??