The Accel "High Flow Fuel Valve Kits" feature a 100 micron screen filter, on/off and reserve positions packaged into a show chrome quality housing. This makes the Accel High Flow Fuel Valve Kit an easy cure for high RPM fuel starve that can cause detonation and eventual engine failure. Accel recommends the installation of a high flow valve with any modification to your motorcycle that increases RPM and acceleration, such as air filter, exhaust, camshaft etc. Available with straight down spigot or side spigot with a 180 degree swivel. Fits most models 1971 thru 2006.