When Chet Herbert introduced roller tappet camshafts to racing in 1950, he established an upper echelon of performance hardware that continues to carry that hard-core mystique. The roller tappet ...

Good ideas have a habit of not always working exactly as they should. We assembled a 0.040-over 350 small-block Chevy in the Jan. '14 issue that we called the Quick Draw .357. It was intended to ...