I am in the process of piecing back together the original AC system on my 69 El Camino. I believe its all there, and found a badly cracked pipe coming out of the evaporator (as i stated in an earlier post) I am in the process of putting in a new evaporator, and a new clutch on my compressor. I bleieve everything else is ok, but there are a few missing vaccum lines. and ports with no vaccum lines at all. Does anyone have any knowledge of any of this stuff, or have a website detailing the installation of factory air? I know thats probably asking alot, but hopefully someone can help me. I'd really be happy if i can get this system to actually work.