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Rocker Arms Developing View

Ralph Johnson worked with Smokey Yunick to develop better geometry for the common rocker arm. That early work has paid off and can now be utilized by all racers due to advances in materials and machinery.
Crane Cams Quick-Lift Rocker Arms

Ralph Johnson worked with Smokey Yunick to develop better geometry for the common rocker arm. That early work has paid off and can now be utilized by all racers due to advances in materials and machinery.  View Related Article

 

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