I was wondering what valve angle are you using to get these great numbers and how much did you move the guides over to make it work? A huge valve with 1.00" lift will almost hit the side of the cylinder wall killing flow... I can't wait to see a complete set on a running engine. My W-9s flow a lot less than most "experts" heads do, 30+ cfm less, but they are almost always 3-5 tenths or more slower than me and with way bigger engines to boot! Not trying to be too negative, I just want to see it at the track, that's where it really matters. Good luck and please keep us posted.