Got an 83 Ram Charger with a 440 today!

that Q-jet that is on there is actually a Mopar Q-jet. And it looks like it is from a 1985 360 equipped truck. (I can tell by the "torx" head fasteners on the top and the mopar linkage) Yes I agree that the rear pcv port on the back of the carb needs to be plugged up or hooked up. That would cause a GIANT vacuum leak. Also, the vacuum port that is under the fuel inlet, comin out of the base plate is for the EGR valve. The vacuum that is down low on the main casting in the front drivers side (kinda jus above the mixture screw) is for the vacuum advance. (EGR and distributor advance sources are the "ported" sources on the carb, dont use them for other accesories). Q jets can be made to rub quite well and can get you decent mileage. Also they are easier to get parts for than a thermoquad . JUs my .02 ( I kinda specialize in rebuilding them)