These hydraulic lifter cams are capable of 6000-plus rpm with stock springs and no valve floatMade in the U.S.A. Harley-Davidson -- 1200 Super Glide FX -- (1975, 1977, 1976, 1971, 1972, 1973, 1974); Harley-Davidson -- 1200 Super Glide FXE -- (1974, 1977,...