Are Long-Duration Cams Good in a Big-Block Chevy?
Camshaft duration may be one of the most important determining factors in big block Chevy performance, but it is still only one of the several elements of a cam’s design that require attention. Some others are valve lift, lobe separation angle, and intake/exhaust centerlines, among others. A long-duration cam is not necessarily bad, but too much duration can be.
