Thanks for the flow numbers Dennis! Hmmm, those don't look like the flow numbers Pro Comp advertises for the 210's! I certainly hope my set will work out well. Hopefully they will flow somewhat better than those numbers since they've been opened up a bit. I will let you know as soon as I can get her on the dyno!
I just noticed that Keith Craft is now building some engines with Pro Comp heads.
Jeg's has just started selling Pro Comp bare heads and their item description states "Producing 500+ HP out of the box"