Air & Fuel System. ECUs & Relays & Battery. Steering & Suspension System. EFI to Carb Dual Stage Fuel Pressure Regulator All-in-one Carburetor 3/8 NPT. For vehicles equipped with OEM fuel injected engines where a conversion to carburetor is desired. Vehicle compatibility charts are for REFERENCE ONLY. Check your vehicle with OEM below to match your needs. 100% quality assurance tested, more responsive, less expensive, easier to install. Dual Stage pressure control with one regulator. Controls pump/line pressure from 8-16 PSI. Controls carburetor pressure from 5-9 PSI. NPT inlet and return, plus two outlet ports. Compact, all-in-one, Dual Regulator design. Provide seamless control of pressure and enable full control of output pressure low enough to feed any off-the-shelf carb. You can install Two 1/8 NPT gauge ports which allow both first stage line pressure and second stage carbureted pressure to be adjusted and monitored. Attention: Shouldn’t be used on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications. Material: made of high quality. 1x 1/8 NPT 45-degree Street Elbow (Gauge Adapter). (100% Brand New Never Used Or Installed). No installation guides are included, we highly recommend to seek professional installation. Will come with everything you see in the picture. Please allow difference due to manual measurement. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. For any inquiries or special requests such as larger amount ordering please write to us. Thank you for your understanding. Above time are for reference ONLY. We Have FREE Retrurn. Lowest price on brand new, in-the-box auto parts.