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This allows it to reliably hold increase power levels
AMPS mounting
ideal for intense
Ford and Chrysler
Hamilton Cams 07-S-002 Competition Dual Valve Spring Kit with Retainers and Locks 89-98 Dodge 5.9L Cummins 2011-2016 Chevy/GMC Duramax 6.6 LML This allows it to reliablyWith a 12 valve, its almost too easy to build extra power, but sometimes, its the little things that make the upgrades work well together and ensure the longevity of the engine. Upgrading your springs are one of those commonly overlooked, but necessary items. And for those looking to reach RPM's that exceed even the factory tachometer, you'll need a set of these dual springs from Hamilton. There comes a point as RPM, valve lift, spring pressures and
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