1965 273 Charger Carter Carb

I put a breaker bar on it and it does turn so it’s not frozen. I’d like to make sure I do all possible to ensure a damage free startup when I get there. Have to pull the wiring harnesses apart and see what I need to do there first.
I bought some electrical terminal cleaners and renewed mine. You can cut down a flexable fingernail file and do the same.