I was thinking that considering all of the constraints on a "replacement" type head, that we are approaching diminishing returns. I was also thinking the same thing on the 75 cc Eddy head. MCH CNC but with the 2.19 and irrespective of the flow bench numbers, the real winner could only be determined on a dyno, or better, in a car.

Last edited by BSB67; 10/03/15 04:38 PM.