so does it improve pushrod geometry for the 59 degree blocks, more like the old poly's? what about rocker gear?

2.19/1.7 valves? must have some pretty good valve shrouding even on a 4" port?

how much?

maybe I'm missing something, but lift up to .5 or so looks about like ported RHS or eddies, overall flow numbers up to .7" don't look much different that CNC indy 360 heads?

or they look to flow comparable to mildly worked 6.1 hemi heads