Edelbrock 2.055 (30 degree back-cut) testing

92b said
Would steeper angles benefit more from a port that has a more straight on approach to the valve from the intake runner? And less so from a stock head where the floor is low and flat and no room for a radius on the short side? See picture

View attachment 1716052053

Yes. I use a 48 degree seat on 23 degree chevy stuff.

The steeper seat has far more to do with flow and the shape of the seat/throat than it does with sealing.