Pontiac Race Engine - Vintage Brawn
Here you can see the Comp Cams valve springs and the Crower 1.65 roller rockers. Also note the Nunzi rocker stud girdle that reduces flex of the studs under the high valve-spring pressures. Another big benefit of the stud girdle is that it has a set screw for each Posi-lock so no single one can back off because of its design.
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