From carburetor floats to carburetor power valve kits and more, Hygrade Tuneup delivers the OE fit, form, and function you would expect from a brand that has led the aftermarket since the 1950s. Their vehicle-specific parts deliver the right fit for the right application. Hygrade Tuneup is a brand known for its quality, industry-standard Jiffy Kits or Carb Kits designed to help repair personnel with all the basic items needed to tune up a carburetor. Hygrade is the name professional technicians trust to get the job done right.