Just use the brown and blue that are on that same terminal and connect them together (I like doing this right at the harness so there is only one wire.
Those two connected together will be your MSD power supply.
The other single wire going from the resistor to the coil is downstream from the resistor and voltage limited. (throw that one away) along with the ballast resistor unless the MSD destructions say specifically to use it, but I don't think they do.
The alternator looks like a dual field "square back" probably between 50-60 amps.
The dual pulleys are for AC, trucks and RV's but it is common to get that when replacing one, and other than the two pulleys it is the same alternator that non AC cars use.
