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.

That question is way above my pay grade. I default to others.

I suspect you are correct in that different valve angles are certainly used in different situations, especially racing.