Ignition upgrade

I sure wouldn't pay $195 for that setup. It is difficult and confusing to re-wire a points car for the Mopar ECU, and gives you an older electronic design. Much better than points, but there are better options. For $45 you can get a "ready-to-run" HEI distributor on ebay for your 318. Several posts here (search). Add an e-core coil, open your spark plug gap, and should see smoother running, easier starts, and better mileage.