Mercury Zephyr Fuel Level Control Units

Learn how to replace a fuel sending unit. Our fuel gauge sending unit guide and installation video covers all you need to match your fuel sender and gauge.

Troubleshooting a fuel gauge can be a seriously aggravating issue. Click here for a video showing some hints and tips!

A quick review of the Performance Tool W41036 Deluxe Engine Leveler available at Speedway Motors.

Learn how to install a bypass and deadhead style fuel pressure regulator. We cover how these regulators work with a carburetor and advantages of each style.

Have a 1970-1994 GM A- or X-body in need of some new lower control arms? Take a look at what Speedway Motors' employee Steve L. has to say about our lower control arms!

Some key considerations for designing your own fuel system. We cover fuel pressure and volume, fuel pressure regulators and fuel lines.

The process on how to effectively winterize your fuel system in open wheel racing. This includes step by step instructions and recommended parts to use for your fuel system.

Save some weight by swapping in some upgraded control arms! Employee Steve L. reviews the 1970-81 Camaro Upper Control Arm.

Read about how important a clean fuel system is for your micro sprint. Learn how to clean and maintain the fuel system during race season.

Questions about what you will need for your fuel sytstem? Click here!