hey yall, i just recently helped put an LS swap in my buddy's EG, and now we're getting a surging idle. I'm almost positive its got something to do with the vacuum hoses and what they are all connected to,but i simply dont know where they go. This is a stock LS head with a type R intake manifold. If anyone had a vacuum diagram or any other suggestions as to what it could be, it would be greatly appreciated. oh, its OBD1 btw. thanks guys.

 

look over the intake mani completely check the gasket also. if it is none of the above try changing out the ecu, sometimes they cause it to do that!