'66 Valiant Weirdness

Thanks for the thorough responses, gents. I won't have the time to really dig into these suggestions until this weekend, but in the meantime, here's pics of the OE VR and the replacement one I bought. The one that was in the car is on the left, newbie on the right.

IRocKKh.jpg

BmlRInw.jpg

Out of curiosity, what is the point gap supposed to be on these Voltage Regulators?