Yeah, I might be able to help ya
I have this engine in my 1981, I'll try and take some pictures this weekend to explain more.
For the time being, do you have the check valve in your intake manifold? Probably not, I'm
guessing there's a pipe plug or something in that hole. This is to where the smog pump is
connected.
The pump itself is mounted on a bracket above the alternator, RH side of engine.