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21 We've already installed the Trick Flow-supplied ARP rocker arm studs and pushrod guideplates on our heads, and with our 302 at top dead center on cylinder number one, the rocker arms for that cylinder are installed. For a hydraulic camshaft, the general rule of adjustment is to tighten to zero lash and then an additional 1/2- to 3/4-turn. To find zero lash, rotate the pushrod in your fingers as shown while turning the adjuster until you feel drag on the pushrod being rotated. View Related Article
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