Holley Mercury Cougar Electrical, Lighting and Wiring Parts

Mick Rau has a garage full of cool cars, but this Hirohata-inspired Merc is a standout.

Check out this headlight wiring and taillight wiring diagram.

Speedway Motors employee Jess M. talks about the custom battery tray and cables she built for her '33 Ford.

Speedway Motors Product Manager Jeff K. not only has an awesome 1946 Ford Sedan Delivery, he has a Mullins trailer that he restyled to match "Elmer". Jeff took the time to write up what he went through to make the style of the Mullins match up better.

In this Tech Tip, a returning customer asks for advice on wiring harnesses for his ’29 Ford roadster project.

There are a lot of options to plumb your dual feed Holley carburetor. We feel this one is a great solution.

Rebuilding a carburetor or renewing it is not as hard or intimidating as it looks. This article will guide you through the steps using a Holley rebuild kit.

Hooker headers are installed in a 1967 Pontiac Firebird for increased power and a boost in performance. See how to work through fitment of the steering box, clutch Z bar and starter.

Learn about 'Speedy' Bill's passion for pedal cars and how that has been passed down through generations in the Smith family. Jess also explains the step by step process to assemble Speedway's Murray Comet style pedal car.