Easy, rob. Set the points put an ohmeter/ continuity check on it and see if it makes and breaks. You can rig a drill, etc to check dwell out of the car, might even do so spinning it by hand You can also check rotor phasing. Open up an old cap so you can see one or two towers and then with a continuity checker on the points, slowly and carefully turn dist so points break. You should be able to easily see rotor relationship. I would pump down vacuum can, if you are using it, to make sure rotor stays within "range" as the vacuum moves it's range.
