Hey guys/gals;
Working on my 1950 3800 with the foot-stomp starter and am converting it from 6V to 12V with an external alternator and one of Langdons HEI ignitions. Question is what does the side-post terminal on the starter do? Here's what I have wired up so far:

Red wire from the Ammeter (-) terminal to the big terminal on top of the starter where the battery is wired.

Blue wire from the ignition terminal on the ignition switch to the coil (+) terminal (that wire splits off at the coil and also goes to the distributor).

Yellow wire from the voltage regulator (3rd post) to the big terminal on top of the starter.

Honestly, I haven't tried starting it yet. What function does the side post perform? Should I be running another wire from the starter's side post to the coil (+) terminal? 7:00am in the morning and my coffee-starved brain can't quite figure this one out.


thx - Bruce