Engine Quest Dodge Magnum Heads New Zealand castings.

mgoblue9798 said
They flow about 230cfm at about .500 lift as cast with the 1.92 valve. Several places were getting about 270 cfm with 2.02 valve, good valve job, and minor bowl blend work.

270cfm would be Ideal for me, it could get me right in the ballpark of 500+ HP.