AEM 25-305BK Universal Adjustable Fuel Pressure Regulator 40-130 PSI Black. AEM UNIVERSAL ADJUSTABLE FUEL PRESSURE REGULATOR – 40-130 PSI. Inlet: 2 x -6AN (9/16-18) Outlet: -6AN – Gauge Port: 1/8 in. AEM High Capacity Universal Adjustable Fuel Pressure Regulator. Inlet: 2 X -6 (9/16-18) Outlet: -6 (9/16″-18), Gauge Port: 1/8″NPT, Vacuum Hose: 5mm (3/16″), and Universal Mounting Bracket with Four (4) 10-32×1/2″ Screws. A longer spring provides for a wider range of adjustment (from 40 to 130 PSI). An easy-to-adjust set screw stands up to repeated adjustments. A single large return orifice is designed to handle high rate flow pumps. The regulator has a 1:1 rising pressure rate for boosted applications, and it is alcohol fuel and race fuel compatible. Universal fuel pressure regulator adapts to virtually any vehicle. Longer spring for wider range of adjustment (40 – 130 PSI). Three -6AN (9/16-18) ORB O-ring style inlet ports (2 inlet, 1 return). Boost dependent rising fuel pressure rate (1:1). CNC-machined from 6061-T6 billet aluminum. E85, Gas, and Methanol compatible. Integrated 1/8 NPT gauge port. About Holley Holley® has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM’s popular LS engine are dominating the LS scene as well. Holley’s products also include performance fuel pumps, intake manifolds & engine dress-up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition! We Feature all of these great products from the Holley family! Our central location in Des Moines, Iowa offers top quality products at affordable prices to all automotive enthusiasts in the continental United States. The showroom offers the unique experience for customers to touch and feel the performance products they are purchasing and learn more about the Chevrolet Performance line. Please see the “Compatibility” link at the top of the listing. Fitment information may not be available for all products and those without fitment will not have a Compatibility link. Please be sure to view the “Notes” option for important details if it is available. You will see your order has been “Delivered” to Pitney Bowes in Erlanger, KY. We are unable to guarantee a specific carrier. We are unable to send an order without an invoice. Our goal is to ensure our customers are taken care of. Please send us a message before ordering, if you are unsure an item will work for your application. Powered by SixBit’s eCommerce Solution.