289 Budget Build Hydraulic Flat Tappet Camshaft
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Because we're using a modest hydraulic flat-tappet camshaft, we could have easily gone with stock rocker arms. Marvin decided on Magnum roller rocker arms from Comp Cams to reduce internal friction and improve stability. It is very important to get rocker arm and valve stem geometry just right, with the roller tip centered on the valve when at half cam-lobe lift. View Related Article
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