Electronic Conversion Kit

On the advice from a buddy, I purchased an Electronic Conversion Kit, I guess as an upgrade. I have a few questions, but will just start with this.. My car was already electronic ignition, although not running when purchased.
This is the only "box" (photo attached) my car has and the plug comes right out of the harness. (2 prong). The original distributor in the car has the 2 plug wires coming out but I can't find in the harness or anywhere else it plugs into. Does that distributor plug go to another box that is just missing from the car..? View attachment 1716342765View attachment 1716342766
That's your Voltage regulator