Are Speedmaster Heads Good? I've Heard a Lot of Bad Press on Edelbrock 340 Heads Lately

Well, I found my “769” W2 race head flow sheet but I can’t quickly find the ported sheet. It went 324cfm with a 2.08 valve.
I don’t remember the valve stem size though. I know I should!

This particular head was the latest and last head with MP revisions.