Big Torque 383 Build - Build A 475hp 383 For $4,719.67
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Dyno test 2 used the Camshaft Innovations mechanical flat-tappet cam with a steeper 1.7:1 rocker ratio and the suggested 0.016-inch lash. This stout rocker ratio accelerates the valve very quickly, which means it might float the valves sooner than a 1.6:1 ratio, but that extra lift definitely pumped the torque and horsepower all the way to 6,500 rpm. View Related Article
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