Why not a 52mm jug?
Must be 4 cube racing?
I'd want to see the transfers, even if just from the outside. Does it still look flat like a 6400 or contoured like a 7900?
An under-bored 7900 would be interesting with maybe some extra material to work with and the extra sweep in the transfer loop.
Watch out 365sp...
I don't trust them after the half-assed thing they and Meteor did with the closed port 55,
basically just slapped a horizontal bridge across the straight up open ports without changing much else.
Well, they did add a vertical divider also but... What a waste of possibilities...