GMC Fuel Pumps, Regulators, Sending 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.

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.

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

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

Understand GM’s AFM system—how it operates, it’s pros and cons, common lifter failures, and your options for tuning, disabling, or full AFM delete.

A detailed explanation of how Speedway Motors small block fuel pump works and a guide for how to replace and install the mounting gasket.