This post together with the other post about the ugly black soot spot on the driveway says that the carb is running way too rich. Depending on how you drive it you should be getting somewhere around 15 mpg. rebuild the carb.
1953 Chevrolet 3600 Fried Green T'mater (Vern) In the Stovebolt Gallery Caution: Political Statement Man who runs in front of car gets tired, man who runs behind car gets exhausted.
