Welcome to the Chevrolet Forum Chevy Enthusiasts Forums. If this is your first visit, be sure to check out the FAQ by clicking the link above. Million used auto parts instantly searchable. Shop our large selection of parts based on brand, price, description, and location. Order the part with stock number. Feeding a Carbureted Engine with an EFI Fuel Pump. It is becoming more and more common for people to use an intank electric pump to feed a carbureted engine. Subscribe and SAVE, give a gift subscription or get help with an existing subscription by clicking the links below each cover image. Electric Fuel Pump Install Chevelle' title='Electric Fuel Pump Install Chevelle' />Evolve that classic GM muscle car into a fuel efficient, ground pounding Muscle Rod using LS swap products from BRP Muscle Rods. Buy Holley 080508S at JEGS Holley 750cfm 4bbl Carburetor Dual fuel inlet. Inline Lamp Switch more. Guaranteed lowest priceFeeding a Carbureted Engine with an EFI Fuel Pump. It is becoming more and more common for people to use an in tank electric pump to feed a carbureted engine. Many new engines simply do not have the provisions to use a mechanical fuel pump. Sometimes there is no room to have a mechanical fuel pump in the engine compartment. Others simply want to clean up the look under the hood and do so by removing the mechanical fuel pump. Any of our in tank pumps can feed a carbureted engine provided that a bypass regulator is used. Because an EFI fuel pump can produce a large amount of flow, a bypass regulator is necessary in order to return the excess fuel back to the fuel tank. When shopping for a bypass regulator make sure that you buy one that is specific for carbureted applications. This is because most carburetors only require around 6 psi to operate. Typical EFI bypass regulators run between 4. Keep in mind that since the pressure requirements of a carbureted application is lower that an EFI application the flow rate of your pump will be higher. This means that the fuel pump is capable of supporting higher horsepower. For most applications our TBI or 2 series fuel pumps provide enough flow for a carbureted engine. For more information on selecting a fuel pump click here. Find Holley Red Electric Fuel Pumps 128011 and get Free Shipping on Orders Over 99 at Summit Racing These Red electric fuel pumps from Holley feature an improved. Short Version of Installing mechanical fuel pump. First start after install Disclaimer To the best of my knowledge this video is accurate. I am in no way. Find FiTech Go Street EFI 400HP SelfTuning Fuel Injection Systems 30003 and get Free Shipping on Orders Over 99 at Summit Racing EFI conversions made easyFiTech. For a carbureted fuel line kit click here. The diagram below outlines how the fuel lines can be ran using a bypass regulator on a carbureted application. Please note that it is important to have a large return line so no back pressure is created. Ferrite Core Inductor Software. For a printable version click here.