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if you cant find a plugged vacuum port on manifold buy a tee fitting and tap into it
hook it up to the intake vacuum, normally the back of the carburetor where the brake booster may be plugged in. On a vehicle without power brakes, the vacuum port is normally plugged with a screw in plug.
hook a vacuum gauge up to any of the rubber hoses that are coming out of the intake manifold, such as the brake booster....
if it is a manual gauge it is as easy as following the directions. hook up a wire for the light, a ground and the vacuum hose spliced somewhere into a current vacuum line with the T that is most likely provided.
All engines must have a harmonic balancer instaled on them. Balanced or not. Hook a vacuum gauge to direct vacuum port on intake. That is a place that will have vacuum on it when the engine is running at an idle. Then read gauge and move the distributor until you get the highest vacuum reading. It should be 18 to 21 inches of vacuum at an idle.
If it is a point type distributor you will want to hook it to constant vacuum...somewhere on a port in the base plate. If it's HEI you'll want to hook it to one in the carb body. Something that has no vacuum at idle but pulls vacuum as you give it throttle.
The hook on the vacuum that hooks your face and feeds it the fish
Ant vacuum port.
Your distributor needs vacuum to advance your timing during acceleration. That's why you hook up your line to the port that has no vacuum at idle. :O)
its hook to the starter
The fuel level gauge is in the tank
tap into any vacuum line leading into the intake manifold. add power and ground if it is to be illuminated.