The Superquads and Competition series were two different versions of the thermoquad. the Competition series was made from 1969-1970 and those were 950 and 1000 CFM. The superquads were made from 79 through the eighties and were all 800 CFM.
Close, the Competition Series Thermoquads were made in 850 & 1000 cfm sizes, the early versions have press in jets, no stamped numbers on the mounting bosses, and used a tag (4846 = 850cfm, 4847 = 1000 cfm) to help identify them. The later versions had screw in jets, the number (4846SA = 850cfm, 4847SA = 1000 cfm) stamped into the face of the drivers side rear foot face, and no carb tag. All of these used a manual choke and while good race pieces, can be a bit difficult to run on an every day street driven car.
I agree, the Super Quad is a good carb for a mild to moderate performance application, but I wouldn't consider them to be anything "special" in relation to other number TQ's