[Carnut427]

I'm not trying to be undiplomatic myself; it's easy to "read" things into something written that wasn't meant; I've done it, everybody does at one time or another. I appreciate your calmness in our discussion.
What I call a "short" low riser port is what you call an "emissions" port; we're both talking about the intake ports. The exhaust port locations seem to float around a bit, I never could figure those out.
I mentioned going to the Edelbrock site only because I don't want to do research for someone who can do their own; I'll do what I have to to back up what I say, but only if I think it's worth my trouble...call me lazy.
Perhaps you're right, all Edelbrock heads may be medium riser in size & location; I really don't know, all I go by is what I read, and my Edelbrocks are ported 427 models, so I can't honestly say what their original size was. It just seems to me that if Edelbrock claims it makes a "Cobra Jet" head that's legal for stock & super stock it would have the tall port; however, it could still be legal with short (medium riser or otherwise) ports, as long as they don't exceed the original Cobra Jet volume.
In closing, perhaps you're right, I can't honestly say, and I'm too lazy to check into it further. If someone else wants to, I'd be interested in any fresh knowledge.

Dan