When I flowed the plastic pattern, 180 cfm on the exhaust and 270 on the intake with 1.6 and 1.94 valves, 2.02 fits no problem. The difficulty was getting a good seat in the pattern. I haven't flowed a cast head yet as the first two were cut up to check all over the casting for consistent thickness. I moved the valves so the big pushrods do not touch the side of the block but they are still at the original centers.
