More ac help

[mblackburnjr]

I've recently picked up another 71 chev, this one with factory ac. However i'm missing the valve (i think) on the passenger fender, and the one above the air box. I think the fender one is called a heater valve, but what is the one above the air box called? I've also looked at literally 1000's of factory air pics on here, and cant get a real good look at either to analyze whats going on. It has a new compressor but one of the heater lines has a shutoff inline. Im assuming to kill the heat cause one of the vacum lines is missing to shut it off. i think i can figure it out if i can get a good look at one.(upper valve) Anybody have a good pic?