Starfury is right on. To prevent confusion, sometime in the future you may want to remove the Vreg from the car - it is not necessary once the 1 wire system is put in. Also if you have upgraded the alternator output to more amperage, it's a good idea to run a second wire (2 Ga or larger) from the alt B+ term to the battery side of the starter relay terminal. The factory wire is not designed to carry the extra electrical load.
66 "C" code coupe bench seat