I have an old distributor that I modified that I use to spin the oil pump drive using a 1/2" drill. The factory rocker arm nuts that you torque down on the bottle neck studs are different at the bottom than regular type locking nuts. So you can't just use any nut and torque it down. Most of the time a HEI distributor is a tight squeeze against the firewall on a first gen. There is nothing wrong with the factory points distributor on a car but just like every other parts produced today the quality of points can be a cap shoot. I have done electronic conversion on factory distributors that also worked fine. Remember if you are upgrading to electronic ignition to have a full 12v to power the coil.
