I run a single blackjack 44 on a heavily ported 735 (yamaha), which is probably a tad "bigger" of a carb then a sbn46 due to the internal tweaks. I think the above could get you close, but think the pilot is going to be too small and you could have a hiccup down low. If his jetting doesn't work try 145-150 main, 130 pilot and lower popoff around 15 psi.