I couldn't remember. The shop I used to work for was going to attempt to be in the engine build everyone is talking about, but the economy fell out from under it and my ex employer got a real case of the a$$. I only got to play with the ports a little bit, but initial testing with a max wedge port and 2.250 valve netted 345 cfm max. I couldn't remember how much of the seat contained the valve or not as we had intended on installing different seats and running a 55 degree valve job to increase the mid and high lift flow. I really think I could have exceeded 350 cfm but I had to work on jobs that paid. Those heads are probably sitting on a shelf still if he didn't throw them in the scrap...