Had a good night on the flowbench(edited version)

the radius cut is the top cut on the chamber side. Radius on the other side, like they do on the exhaust 'mopar performance'for instance, WON'T hold the air as well, I do not radius cut my intake bowls/under the seat. Angles are your friend, and when people talking about diff valve jobs for diff heads, like back cutting valves, depending on the fps...you might not be able to back cut, do more angle than 3.....because it might speed up the fps/feet per second and air breaks up/turbulence and flow goes backwards. That cause could be improper shape or just plain too small port for the amount of flow. Many things to consider.