i've been doing a TII swap and i forgot where thje little hose on the back of the water pump housing goes. here's a pic

Thats coolant nipple goes to the themowax on the throttle body, if you do the TB mod, you can just cap that off..

what TB mod are you referring to?

Check FAQ section..

I have done the TB mod and removed the BAC on my car and I have that nipple connected to the nipple on the top of the intermediate housing.