I realize their are a lot of bolters out there that HATE the Rochester "B" carburetor. My experience has always been good with Rochester carburetors from the model "B" to the Quadra Jet 4 barrels. Carburetor dip is your best friend! Disassemble it and let it soak to make sure it get really clean. Lay out the parts on a good work surface in the order they go back together. Check the bottom bowl for flatness and the air horn for flatness prior to assembly. a lot of the Rochester "B" carburetors have gotten warped over the years from over tightening the screws. Patience and attention to detail is needed to properly rebuild a carburetor. Some carburetors are more forgiving than others, but take your time cleaning it really well, blow out everything with compressed air with a nozzle, check for FLATNESS between the air horn and bowl, follow the rebuild directions and measure and measure again for all tolerances on the float, pump, etc. DON'T OVER TIGHTEN THE SCREWS!! Carbking may jump in on this to add anything I missed. Of course, your other alternative is to throw out the Rochester "B" and get a Carter to rebuild.
