Awesome Dwayne thanks for the info, as usual you come through where no one has . That solidify's for me that the heads do actually exist .

Pretty impressive off the bat, definitely don't show the peak #'s promissed but that's what I expected. They actually are more then I expected, the mid flow #'s are pretty friggin good. In fact the mid flow #'s hang with/beat my Dwayne-prepped heads . Hey Dwayne wanna make another trade ? Just kidding i'm guarding these with my life, besides I wouldn't want to trade exhaust core shift for intake core shift .

Edit: I just noticed the #'s dip when they hit .550, and on the bad port it even continues in the .600 lift then picks back up, what's up with that?