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Using a flat-tappet cam with very little duration and banging the valves open with stout 1.9-ratio rockers were instrumental in getting as much air in as soon as possible. To stabilize the valvetrain, stout 3/8-inch-diameter pushrods were employed, and have been proven to reduce valve bounce. Reducing weight on the valve side of the rockers by the use of titanium retainers and small-stem valves is critical, but is not as important on the camshaft side of the rocker, where strength and stability are king. View Related Article
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