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Old 11-20-2013, 12:34 AM
nulu nulu is offline
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Join Date: Feb 2007
Location: los angeles
Posts: 836
Just looked in a book the mark tdc should read O.T. maybe you reading between 0Tand 10 ,tdc is =OT, THE MARK BETWEEN O AND T IS TDC ,if your reading the 0 0 mark your about 5 degrees off,
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