SBM Edelbrock/Speedmaster Head Data

rumblefish360 said
Question. Would t the valve seat angles of the seat and valve change with valve size and/or port shape?

I was thinking it would since what is good at one valve size and port shape may not work well with a larger port size and valve.

Isn't the valves throat optimal ratio kind of standardized to? Kind of leading me to believe what happens at the valve is somewhat independent of the port.