Got the Mikuni sidedraughts to behave. Just need some fine tuning now, finding it real hard to stay focused on the sidedraughts when I want the bike carbs going so bad. Here is the model by the way, I did finish it a while ago but kinda forgot about it.
See what I mean by 'close' to the head?! These sit at exactly the same angle as the ports on my head so it's custom alright.
EDIT: The adjustment of the viewport make the manifolds faces look like they are sitting square against the head face, they are, they just don't look it.