I made this this weekend, mainly for balancing triple Webers but it also worked a treat on my TC (better than the Webers infact). I'm too tight to buy the correct kit, so decided I'd get a bit resourceful. All from bits and pieces that are readily available from the hardware store and the motor factors. Carburettor balancing meets school boy science. I've already posted in my 4cyl engine post, but thought it might get more coverage here. If any one wants to copy it or know how it works, let me know and I'll take more photos and add more details.