Brand: Aeromotive Manufacturer's Part Number: 13209 Part Type: Fuel Pressure Regulators Product Line: Aeromotive Double Adjustable Carbureted Regulators Automotive Fittings Part Number: AEI-13209 UPC: 00684980002386 Regulator Pressure (psi): 4-8 Regulator Style: Return Regulator Location: Inline Boost/Vacuum Reference Port: Yes Gauge Port: No Inlet Quantity: 1 Regulator Inlet Size: -8 AN Inlet Attachment: Female straight cut O-ring Outlet Quantity: 3 Regulator Outlet Size: -8 AN Outlet Attachment: Female straight cut O-ring Return Fitting Size: -10 AN Return Attachment: Female straight cut O-ring Fittings Included: No Regulator Material: Aluminum Regulator Color: Red Rebuildable: No Mounting Bracket Included: Yes Remanufactured: No Quantity: Sold individually. Description: Aeromotive double adjustable carbureted regulators are designed for use with Aeromotive's series of mechanical drive fuel pumps. These regulators allow a dual pressure strategy often required for alcohol carbureted racing engines where fuel pressure must be lower at idle, but higher as rpm and loads increase. Aeromotive double adjustable carbureted regulators prevent flooding during low fuel demands, while eliminating starvation at high fuel demands. They are capable of supporting 2,000 hp, alcohol-burning engines. These regulators do not require jets, pills, logs, or barrel valves.