Best Bang for the Buck Head???

Op, airflow is power. Stock stroke is no reason to not want better heads.
If you are not going huge on the cam, then you should stay with a head that flows big .500 lift and under.
As good as the rhs heads are, they are titanic in weight and in their most common form flow what a well ported j head flows,if I'm not mistaken you don't see the heads flowing over 300, which is the eddy head peak.
Hard to wanna buy the heavier head when they are both about the same price in the end.