New cam issues,

Putting my 383 together, finally. Im at the point of putting the cam in. I bought it from a member about 4-5 years ago. I stored it in a tube box wrapped in a jeans material. That's how I received it. But... it looks tarnished, light rust almost. I took some brake cleaner to it and some brown ( I'm figuring rust) came off on the paper towel. Any thoughts what you'd do? Krokus cloth? Here's a couple of pics.no wear on the gear, so it's definitely not used...

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Scuff it up with a maroon colored Scotchbrite and see what you have.