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12-10-2011, 10:50 PM
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#3 |
 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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It's not remotely worth it, IMHO. You get more issues with preignition/ping than any power gain. You'd have to go far more extreme than shaving will allow for in order to see anything significant (higher compression pistons and definitely not cast ones).
You have to take a LOT off of the head and block for it to affect timing to any significant degree.
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