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Old 05-03-2009, 08:51 PM
Ronbo Ronbo is offline
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Join Date: Feb 2008
Location: Jacksonville, FL
Cobra Make, Engine: Kirkham #570 w Shelby FE
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I'm curious why the gap expands, the only thing I can think of is the valve face expands from combustion chamber heat? (pulling the valve farther into the chamber)

Is this correct? Just curious.
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