Intended for closed-course racing only, NBR rubber material is used on all O-rings and rubber gaskets – NBR has excellent resistance to the ethanol used in today’s fuels, Includes all gaskets (including spigot body), O-rings, float bowl, carburetor cap, spigot body screws, fuel mixture screw (with spring, washer and O-ring), float needle valve with FMK tip, and accelerator pump boot
