Ive seen posts on here about hooking up vacuum gauges to FI cars to the phlenum, but I didnt see where to hook one up on an LG4. So if someone could tell me the best places to hook it up up to my carbed car I would appreciate it.

 

Any convenient vacuum port on the manifold will do, and most of the ones on the carb as well; you can sometimes disconnect the line that would be there to get to a fitting (air cleaner for example) or T into something.