from what i learned from lots of reading is, they will work, but your gonna spend alot of money on jets, have 5 things in these carbs to change, and no real baseline, so its alot of guess work, i would go vm30s though. and buy them not in a kit, you can get vm30s brand new for about 66 bucks if you shop around. then you just need a high quality cable, and air filters. another thing to note is, vm30-36, are 40mm spigot where the bs34s are 44mm, the stock rubber manifold will clamp down to 40mm however, i tested this myself.
however, i think i have decided myself to go with pwk30s, 44mm spigot only main jet, jet needle and pilot to change to get it tuned, so i picked that rout, brass gets expensive