Hello, I have been restoring my dad's 1969 charger and have come across a big problem which is the battery is not charging when it is running. The car had the later 70 and up electronic ignition which i switched back to the original points ignition setup. My question is am I missing something that runs from the alternator to the battery? I get full battery voltage at the alternator through the green field wire when the key is on but the engine off. Nothing on the output post has voltage however (i don't know if it is supposed to or not). Any help at all would be appreciated as I am stumped at this point.