COMP Cams Cup Adjuster Screw Ultra GoldUltra ARC Aluminum Series Rocker Arm Cup Adjuster Screws Set of 16. The Comp Cams Ultra ARC Aluminum Series Rocker Arms increase engine power, improve valvetrain stability, and enhance oiling efficiency. Their extruded designdeveloped using FEA analysiscreates a stronger, stiffer rocker body without adding unnecessary weight. The ARC series rocker arms feature an Arced, Recessed, Contoured design delivers an optimal strength to weight ratio. Backed by
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