manifold

In my 1988 YJ with I have the 4.2 engine block with the 4.0 head. The intake and exhaust manifolds are stock to the 4.2 I believe. I have nuttered the Jeep, therefore I am not using the knock sensor and coolant sensor in the intake manifold and the oxygen sensor in the exhaust manifold. I would...

Ok so I just rebuilt my POS Carter 2 bbl and went to hook up vaccuum again and have a port on the back of my carb right below the stepper motor that is open and I cant figure out what goes there? Now I also cant get the thing to idle right. Ive read a bunch of stuff online and have figured a...