Aeromotive A2000 Carbureted Bypass Regulator – 4-Port. Dynamic flow and rock steady pressure make this regulator perfect for naturally aspirated or carbureted blow-through applications. The A2000 Bypass Regulator provides unmatched boost reference and high flow capacity. Compatible with any high volume electric or mechanical fuel pump. Adjustable from 2-20 PSI. (Requires AN-10 return line). Fuel pressure rises on a 1:1 ratio when referencing boost. ORB-10 inlet and return ports. Part # 13202 provides (4) ORB-08 outlet ports.