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COMP's Pro Magnum steel roller rockers were used, and we tried both a 1.5:1 and 1.6:1 ratio. The 1.6:1 ratio seemed like it might just start coming on at the very top of our rpm range, but the valvetrain seemed to lose stability at just the point where the advantage would have become apparent. Another case where we wished we'd stepped up to Shaver's optional COMP beehive spring upgrade, which offers more spring load. View Related Article
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