You just can't beat the nostalgic ground-pounding sound of a lumpy bumpstick and the whine of a gear drive. Even from miles away, everybody knows you are coming before you pull up to the local car ...

Simply tweaking an engine's cam specs can transform it from a bring-on-those-3.08:1-gears torque beast to a give-me-rpm-or-give-me-death screamer. In other words, a cam has the power to impart bipolar ...