Here is my setup. It is comprised of a Mallory HyFire 6A, a Mallory HyFire tach adapter, a set of Auora Super Mag Plus wires, a Compufire high-output coil, a set of NGK plugs, and a Bosch rotor with the resistor removed. All of this was purchased from aircooled.net. Total parts was about $260. Of these items, the only ones strictly necessary are the Mallory components and the plugs. The only thing that I am disappointed with in this set of parts are the plug wires. They are nice wires, but even though I ordered wires for a Type 4 engine, they did not include the bakelite plug connectors. I had to modify the wires by removing the crimped-on plug connectors and screwing on a set of bakelite connectors (which I got at a junkyard).