McGEE Racing's brass high speed by-pass valve is designed for fine tuning the high RPM fuel requirements of your racing engine. Adjustable from 40-85PSI, setting the fuel pressure is accomplished with different shim/spring combinations. Additionally, our by-pass valves accept common pills for fine tuning.
Comes complete with poppet and your choice of pill and shim/spring combination for your required fuel pressure. Let us know what your requirements are and we will set the high-speed accordingly.