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12-12-2008, 03:34 PM
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#6 |
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Member
Join Date: Feb 2005
Location: Dayton, MD
Posts: 222
Likes: 0
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Re: 2009 NHRA Rules
You can't angle mill a head enough to change the valve angle more than a degree or should I say, you can but the head wouldn't be useable... what they don't want you doin is reboreing the guides to change the angle
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