Cut 50% weight from valve, spring & retainer.
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Mission Impossible - the big cylinder head challenge.
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Cam timing for REAL power and the automatic cam degree wheel
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The Airflow Wizard, Darin Morgan Talks Hidden Horsepower
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Valve Spring Dynamics and Failure
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Worlds cheapest and MOST EFFECTIVE octane booster
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Do Your Own 3-Angle Valve Seats!
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millions of people do not know this machining tool. lathe machine modification
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