Magnum 318/5.2L Swap (Carbureted) - Stock serpentine alternator set-up?
Late update: Got it figured out nearly a year ago haha! Bought a 70's-80's style Mopar voltage regulator new off eBay. Also bought the correct voltage regulator connector from the same place. I used a battery tester to test continuity on my factory alternator wires to figure which one out of the two wires was witch. Anyways, just got a 12 gauge wire going straight to my battery and to the alternator. Guess it doesn't matter what amp your alternator is, if you already have a fusible link from factory where all the connections are at the firewall, you'll be safe. So you got 2 FLD posts on the alternator, and a blue + green wire. It doesn't matter witch side you hook it up to between the 2 FLD posts on the alternator, and when you kick your ignition on, it kicks the voltage regulator on, witch then will make a connection between the 2 FLD posts to output the correct amount of voltage to the battery. In my set-up, the early A bodies utilized 2 wires on the factory alternators, one for BATT, the other for FLD. I ended up reusing the FLD line and hooked that up to my green wire at the voltage regulator, and then tied my blue wire into the ignition - right at the wire were the factory ballast resistor would get its power, and also tied the other FLD post to that same connection. Charging around 14.67V!
NOTE! Do not buy Chinese voltage regulators, they may look good for the price, but they do not last, only last a week. Be sure to buy a USA made/Mopar voltage regulator, and you won't keep kicking yourself. Also, be sure to have a voltage gauge meter hooked up to monitor your voltages. Literally my voltage would spike up to 17-18 volts with the chinese cheap crap voltage regulators. Now it always stays where it should with one made here in the USA!!!