Time was when a company called Racing Head Service struck fear into the hearts of the competition. If your race motor was sporting a set of heads from these hallowed halls, chances are it was going to ...

Why bother with the extra expense of racing a set of aluminum cylinder heads instead of the much more common (and cheaper) cast-iron cylinder heads when the rule book allows you your choice of either?

Paraphrasing Dr. Seuss's magnificent Cat-in-the-Hat, "Calculatus Eliminatus is the best friend that you've got; the way to find the missing horsepower is to find out where it's not!" As we all know, ...