1980 Chevy Monza TC with 2.5 iron duke. Does anyone have the vacum hose layout for this, since the emission sticker is gone. I am at a loss since when I bought it most of the vacum hoses have been blocked off and I suspect it is the cause of my rough idling, that and I need new carb gaskets which are going on this weekend. Plus parts identification. There is a vacum valve located under the intake manifold and has 2 fittings. One is broken and no hose is connected to it, but I can feel the vacum on it(no clue what it is). I don't care for emmisions but I like keeping things as original as possible, and this car was seriously jury rigged. Thanks in advance for the help.
Tim