Yeah I think there is a TON of potential variation as far as A/F tuning goes and that's the wild card to me about this build it could either be huge for fine tuning the setup or just be a complete PITA. We will just see I guess.
I've had to put thinking about carb tuning on hold while working on other parts of this build. A friend helped me turn some holes in stock cranks for the pinasco case half (11mm hole with 1mm milled off the face, per pinasco's instructions). I also started modifying my stock case inlet as well as just test fitting everything together.
The QC on the pinasco half was terrible. The hole for the stud was misaligned by ~1.2mm so I had to use a round file to open up that hole in the cylinder. And the round channel for the cylinder skirt was rubbing hard too because of that, so I also sanded that down a little so I wasn't opening up the hole in the cylinder too much. Everything is fitting together nicely now though and I'm onto some case matching, degree measuring, port grinding, and crank cutting to play nicely with the 43mm Malossi kit. Taking lots of photos for a build thread as well which I decided I'll just save for later.