Often, a proper camshaft can be difficult to select. Selecting the proper camshaft is absolutely critical to achieve optimum engine power. Can you be sure that your choice is neither 'too little' nor 'too much' cam. At PIE, we have taken the guess work out of camshaft selection for MOPAR Magnum engines. You can be sure that our cams work! Here, we custom grind camshafts to our own exacting specifications. Then, all of our custom camshafts are dynamometer tested in an array of engines in naturally-aspirated carbureted and fuel injected configurations, as well as in forced-induction turbocharged and supercharged configurations. At PIE, our camshafts contribute to maximum power while, at the same time, maintaining driveability and consistent valve train reliability.