Sweet, Im doing similar at the moment (Very slowly!) running ZX12 TB's (taper from about 47mm down to 42mm which suits the intake port area rather nicely and only 2mm out on the cylinder spacing) with some mild cams and a V3 board on MS II. Just in the middle of making the manifold and trumpets, finishing the engine build and finalising the board build (still cant decide which ignition to use lol) sorting out which fuel pump to use etc etc etc etc! Will be good to see how you get on.