Power steeering question

[mprat]

I have installed one of those March serpentene systems on my 67 chevelle. The problem I am having is the power steering requires an external tank which I have never messed with. I will try and describe this as best I can. While standing in front of the chevelle and looking down at the power steering box. There are two lines one on the left and one on the right, which line should go to the power steering pump, I am unsure about what line goes where. I hope someone has installed one of these before, I hope someone will understand what I am talkin about.... I think it should be the high pressure line that goes to the pump, but I don't know which one it is.