Product details:

Aeromotive SS Adjustable, ORB-06 RegulatorSpecifically designed for carbureted street or racing engines, these adjustable regulators offer higher flow, quicker response and less pressure creep than competing two-port designs. Ideal for dedicated nitrous applications. These regulators are used by many of the NASCAR teams. 1/8 NPT gauge port. Regulators re-seat after the carburetor needle shuts down, preventing pressure creep. Includes mounting bracket.