xs750 Special Carb Tune

Hey guys so I just purchased the Carbtune Pro made by Morgan i belive..? Anyways upon receiving the carb tuner I cant seem to find where to hook up the tuner to. The instructions that came with it are not very specific either. Do the hoses connect to the carbs themselves or some where else? Might seem like a simple question but I am not sure? Any help would be great.

Also the carbs are Mikuni Mark II

The vacuum take off is on the cylinder head. Just in front of the carb to engine rubbers.

You see those three pips there behind the intake rubbers. That right there's the spot!