[SSC's76]

Rob has some good info here and I see another P.CO person which is cool. I'll give the warning though most q-jets have been taken apart and reassembled soo many times many parts have gotten "lost" and throttle shafts have been worn to a point they need new bushings put in. If you can verifiy that this carb is factory as far as primary jetting goes I'd suspect the casting plugs are leaking like crazy which is the most common reason for poor milage with a Q-jet. They can be kinda difficult to rebuild if its your fisrt time so do as Rob sugests and get the bookand take pics. When you get to the point where you want to rebuild the carb check around with your local welders and see if any of them will silfloss the casting plugs in your carb. It will last a heck of a lot longer then JB Weld.