For some reason there is more information on the CL version.

http://www.foxmanufacturing.com/inde...ac8ea53016843c

Because the CL people often do not use muffler pressure, and thus they need more fuel draw, the venturi is often smaller than the RC carb and so the RC version often performs better thant the CL version. Also Fox tends to underrate them somewhat because they will replace the engine if it does not perform to their published performance. As I recall the RC version does 13,800 on an 11-6, and on 5% fuel at that.