DrJ's started a separate thread for these heads over on Yellowbullet.

Link: http://www.yellowbullet.com/forum/showthread.php?t=505014

Quote:

DR J's Performance

New AIRWOLF SBM 220 Fresh off the CNC

New Import casting. It will take std LA hardware. The head is very well made with good quality seats and guides. The seats are ductile iron and the intake seat is 2.15 dia.We are going to be putting 2.08 1.60 valves in the heads. the prototype flowed 213 @ .300 and 323cfm @.700 on Reher's bench