4 bolt heads aside, we have two openings?
CVO110 is 1.75" like MVA?
Ported 103 and 110+ big too?
CVO 103, std HTCC, "Kompressor, old bathtub SE and early and late style bathtub small?
[I wish that I could find my older SE catalogs]
I can't remember the port opening that I used on my 117", but 1.800" sticks in my head [???15+ yrs ago]. Iirc, I bought the S&S intake with their head port opening size, and had to use thin intake flange seals. The S&S intake did fit into the '06 up flanges. The inlet looked like a choke to me. Car guy thinks seat throat should be the choke, and port should taper +/- .5* from plenum to there. Slotting the holes and taking it all from the roof seemed right, but it was hard to drop the port floor and short turn! I did leave a thin fin in the middle. Those old SE heads had a heck of a hump on the floor.
What a learning curve!
Dave