Wish I could help you out but my carbs are a totally different design than your carbs. You've got external bowls and so on. Mine is basically like a big Mikuni carb - float on the bottom, piston, dampener rod, jet, needle. You've got to get your float height to a happy place though and that may not be the factory setting. My factory setting is fairly close, but not quite perfect.

And you've got to get the right amount of oil in the dampener section. I'm sure the 240Z guys could help you there, on the 260Z it is about 2ccs.