My latest build a 1964 Rupp Dart A-Bone

Wade, glad you liked the Rupp/Mobil kart. I actually sold that kart to a collector in Arizona. It sounds as if you have your hands full with your Rupps and 820's. I'm in the process of restoring a Xterminator with twin 820's for a client, should be done with it in a month or so. If you ever have any questions, just ask.