That is what the alternator is doing right now. No need to add the jumper.
I HIGHLY recommend you do it right and keep everything on the car as much the correct year as the car.
BTW just because the engine is a 60 something the rest of the car is 73 so ALWAYS order parts for a 73. If there are engine explicit parts check the same part for the engines age and the cars age and if the parts are different then ask here which to use.