Hi,
these specs came from a CCM, to suit my 580, given to me from Rod Spry.
runs well, but not raced yet, still waiting for more bits,no mention of air jet size or fitment so presumed a 2.0
(hi 36 mm vm mikuni jetting for 580 ccm, slide 2.5 needle 6dh3,needle jet 159 p2 ,pilot 35 ,,main 200 cheers rod)
oh yes, had to hand make an alloy manifold to suit
cheers