The FAST Adjustable Fuel Pressure Regulator is a premium CNC billet regulator designed to exact specifications by our engineers. The unit features twin - 6 SAE feed side ports and one - 6 SAE return port on the bottom. The fully adjustable unit is vacuum referenced and utilizes a hex adjustment stud with jam nut. The unit has a 18 NPT gauge port, as well. The regulator is a kit, including the unit, mounting bracket, 18 NPT plug and 18 NPT to 316 barb. The regulator can be used with a single feed (plug second feed) or with dual feeds. Requires the purchase of port fittings separately (all three ports are - 6 SAE o - ring type) and can be selected from the FAST fuel fitting section.