Cast Bypass Regulator W/JET - Features blue powder-coated top and is desgined for use with a belt driven or mechanical fuel pump. Adjustable jet provides tuning of low RPM fuel pressure. Comes with stainless mounting bracket. All threads are NPT. •Adjustable from 4.5 - 9 PSI; Preset to 6.5 PSI •3/8" NPT ports •.375" (3/8") restriction •Recommended for use with alcohol fuels •Includes an 1/8" NPT port for manifold reference Boost Reference 1-1