Lots of good information here. If you guys have a more mild build, just pay attention but some of what the guys have done to their heads might not be necessary for you. I little gasket match, smoothing here and there and the like will be a plus for you.
Right now I'm teetering on a 50/50 of just slapping them on right out of the box after spraying a little brake cleaner on them and see what they do...
I've had just about enough internet Boogeyman.. they look like beautiful heads to me and they're brand-new for heaven's sake...