Does anyone know what 6-cylinder electronic distributor could be used as a donor for a 248 GMC? I have access to a machine shop so that's not a problem. I know Jim Carter sells one machined and ready to go but I'd like to do it myself. I've looked at Pertronix but I will be using this as a daily driver and I want to use a readily available distributor body that can be rebuilt with over the counter parts in case I break down in the middle of nowhere!