Patented third fuel circuit has a built-in air correction system that permanently solves the problem of poor mid-range performance or a too-lean condition on the top end. It operates over a wide range of altitude and atmospheric conditions. May be installed on all S&S Super B and E models as well as Bendix/Zenith and Keihin (except CV) carburetors.
Note
S&S B & E, Bendix/Zenith & Keihin (except CV)