Clay Smith Cams GMC C25 Suburban Parts

For this special anniversary episode we celebrate 70 years of Speedway Motors with Carson, Craig, and Clay Smith. As the sons of "Speedy" Bill and Joyce Smith, they were there for it all as the business and the family grew up together.

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.

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.

Picking a proper camshaft for your project can rapidly deteriorate into chaos. So many possibilities. Want a little advice? Click here!

See how to install 3" Ram Horn exhaust manifolds on a C/10 with a 406 engine. Learn some tips on welding steel tubing to a cast iron manifold and how they are modified to fit the truck.