Hi,
It's "Auto LINE" (not Autolite, like the spark plug) just in case you did some searching for it.
It's a remanufactured Q-jet without the electronic mixing solenoid. The C9394 model usually has a $100 core charge. You're supposed to take your old one in and get $100 credit, like a car battery.
The attached pic is the underside of the carb. The adjustment screws are like most typical carbs. They are located in recessed ports and spring loaded but you can see the flat slot on the screws which are located right close to the intake manifold.
A lot of Q-jets in my experience will almost not go rich enough to idle smoothly. Yours may be different. There is a modification where you can drill out the ports for a richer mixture with less CCW turns of the screw, but try adjusting it correctly first. With a screwdriver, turn the adjustment screws in (tighten) until they seat, and then turn them out 3 turns each.
Crank engine and look at a tach or hook a vacuum gauge to the manifold. Decrease your idle speed to 500 or 600 RPM with the idle speed adjustment screw on the right side of the carb. Make sure the engine is up to normal operating temperature and the fast idle cam isn't kicked in and the choke plate is open.
Turn one screw CCW (loosen) and see if the engine speed increases. Keep adjusting until it increases to maximum speed. So the same for the other screw until maximum speed or maximum vacuum is obtained. They should be very close to equal in number of turns in and out. Some folks will lean the mixture just a tad by turning each screw in about 1/2 of a turn, or until the engine speed drops 40 or 50 RPM.
Hope this helps.
Mack.
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