11-18-2011, 10:36 AM
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#13 (permalink)
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Base Member
Join Date: Oct 2010
Location: J.P., LA
Posts: 47
Drives: 2009 Nismo 370Z
Rep Power: 15
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Quote:
Originally Posted by MightyBobo
Its the gentle tapping of the pistons into the valves, massaging them into the proper shape. After a little bit of driving, they'll be shaped to perfection, and you'll gain horsepower.
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