Right corner
By dumping the parts in right corner, so you mean all those hoses 19, 21, 28, 29 etc?
Also, I have an XS650 tank which takes 2 petcocks, so I assume I will need to add a t before 1 or maybe skip the t if I can run one line into the no. 2 carb and the other line into the no. 3 carb.