A727

Hello FABO Transmission experts.
I haveven a question about a, A727 Trans I received with a Dart purchase. I have tracked it to a 76 Dodge 318/360, B series and Ram charger / Trail duster 2wd trans.
All good but are the two weights on the converter good enough for a LA 360 and or a 5.7 magnum? Also what's up with the electrical plug on the dipstick (motorhome? )
Trans id# 3898866
Thanks everyone

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OK, I though about it some more. Is the flywheel where the balance comes from? And the converter is neutral balanced?