[JBurnz400]

So Im building my first engine, and just got my heads back from the machine shop. Everyone I've talked to said I should do gasket matching before I install the heads. I have a basic understanding of what needs to be done, but I could really use some help if anyone knows of good technigue as far as what dremel head to use, how to line up the gasket properly, pretty much any advise, or link to web page, book, ect would be greaty apreciated and helpful.
thank you