COMP Cams Mercury Zephyr Engine Parts

Picking the right camshaft can be a challenge. Use our camshaft selection guide to learn how to select the right cam for your street rod's best performance.

A guide to choosing the right camshaft for your engine. See how to install a new LSR roller camshaft while upgrading valve springs and rocker trunnions.

What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.

How to replace sway bars in a Mercury Comet and the advantages that come with it.

An LS cam swap can yield big power gains. And, you can do it at home. Here's how...

Engine Cylinder Numbers

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

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.

Caster and camber are critical adjustments to your car's suspension alignment. It's important to understand what caster and camber are as well as how they can affect your car's performance.