When it comes to cams and Two-Valve power improved motors, things can be tricky outside of bolting on some sort of power adder. Trying to get more power from a naturally aspirated 4.6L Two-Valve can ...
Thump, thump went the exhaust pipes as the sizzling Three-Valve engine idled with intimidation. Fellow S197 owners looked on with envy as Justin Burcham of JPC Racing warmed up a customer's '06 ...