Why You Should Run An EFI Fuel Pump On A Carbureted Engine

A vehicle’s fuel system is designed around whether an engine will use a carburetor or fuel injection to introduce fuel and air into the engine. Typically, you’d run a fuel system that’s set up specifically for EFI or a carburetor, but there are some advantages to running an EFI fuel pump on a carbureted engine.

From a performance standpoint, a high-pressure pump — Like what would be used in an EFI fuel system — will give you consistent fuel pressure when used with a carburetor. When using an EFI-style pump, the fuel system will be return-style and it won’t be put under any additional pressure like a deadhead system would in a carbureted application. You will also be able to use an EFI-style fuel pressure regulator — this opens the door to an easy transition to EFI in the future if you want to ditch the carburetor.

If you decide to use an EFI pump with your carbureted engine, you’ll also have the ability to use either an external pump or an in-tank-style pump. The external pump will make it easier to replace or upgrade your fuel pump in the future. If you don’t want your pump exposed to the elements, an in-tank pump is the best choice, and it will provide improved cooling for your fuel pump.

fuel pump

The fuel pressure regulator is the final piece of the fuel system puzzle for this application. You’ll need to run a return-style fuel pressure regulator and plumb the fuel system to use an EFI fuel pump. However, the regulator will need to have the correct low-pressure spring installed so it can be used with the carburetor.

If you’re interested in building this type of fuel system, you’ll want to watch this video from Holley. Host Ray Frescas goes over the parts you’ll need and why they will work with this type of system.

Article Sources

About the author

Brian Wagner

Spending his childhood at different race tracks around Ohio with his family’s 1967 Nova, Brian developed a true love for drag racing. Brian enjoys anything loud, fast, and fun.
Read My Articles

Hot Rods and Muscle Cars in your inbox.

Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE!

Free WordPress Themes
Street Muscle NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

Street Muscle - The Ultimate Muscle Car Magazine

streetmusclemag

We'll send you the most interesting Street Muscle articles, news, car features, and videos every week.

Street Muscle - The Ultimate Muscle Car Magazine

Street Muscle NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

Street Muscle - The Ultimate Muscle Car Magazine

streetmusclemag

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...


fordmuscle
Classic Ford Performance
dragzine
Drag Racing
chevyhardcore
Classic Chevy Magazine

Street Muscle - The Ultimate Muscle Car Magazine

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...

  • fordmuscle Classic Ford Performance
  • dragzine Drag Racing
  • chevyhardcore Classic Chevy Magazine

Street Muscle - The Ultimate Muscle Car Magazine

streetmusclemag

Thank you for your subscription.

Thank you for your subscription.

Street Muscle - The Ultimate Muscle Car Magazine

Thank you for your subscription.

Thank you for your subscription.

Loading