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Re: Any idea on what this knocking is 72 C20 350
Plus there is no torque spec on the rockers. You probably have a hydraulic cam. Tons of reading on google how to set them. But when it's running. Back off the rocker nut until it ticks. Then tighten until it doesn't tick then tighten 1/2 turn. That's for hydraulic only. Not a solid cam which I bet you don't have
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