hmmm what should i do with me new dremel?

Take off manifolds and port match

Depends on which one you got. Alot depends on that.

got this one-http://www.dremel.com/en-us/tools/tool-detail.htm?H=188091&G=66981&I=69675

That'* going to be tough on car parts. You need full variable control to really work a manifold. Be prepared to find a local source for a set of brushes. I burn brushes out two or three times a year. And that'* on the high-end units.

The Black & Decker tools are made by dremel, but don't have replacable brushes. Stay away from them except for light work.

The tool you got will be good for sanding and polishing, but not really suited for cutting metals with carbide bits.

im thinkin the first thing im going to do is clear the rears then maybe on to some polishing after that

It should work good for that.