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139 0402 Valve 5 Z

Lafferty (left) and Lloyd McCleary of T&L Engine Development perform yet another measured rpm run on the Spintron.
Endura-Tech Valvesprings - The Case Of The Bionic Valvespring

Lafferty (left) and Lloyd McCleary of T&L Engine Development perform yet another measured rpm run on the Spintron.  View Related Article

 

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