What have you gotten out of an rpm head(intake port),and what was the runner volume when it was done?
I've never poured one after porting but I got 315-318 cfm with a 2.08 valve without moving the pushrod. Tubed but not moved and a lot of work. Bolt hole is also tubed but I do that on every Edelbrock head I port. K&S tubing makes it to easy not to. I won't be sonic checking the floor on this set but I'm betting they learned from Procomp (Speedmaster) to fill the floor some. From what I hear several guys approached Edelbrock about doing this and they didn't want bothered.
