Aeromotive's Pro Stock 2-port regulators are race-tested by record-setting professional racers. They were designed to be used with the Aeromotive A2000 fuel pump and other drag race style pumps in single-carburetor applications. Utilizing an extremely lightweight titanium valve and an innovative opposed-spring design, these Aeromotive Pro Stock regulators are engineered to be the quickest responding, most reliable high-flow regulators on the market. Their Type II bright dip anodized body and cap are CNC-machined from 6061 T6 aircraft-grade aluminum and feature a -12 AN inlet, two -8 AN outlets, and a 1/8 in. NPT gauge port.