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Degreeing cams

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954g63gst

10+ Year Contributor
228
24
May 24, 2012
gardner, Massachusetts
Ok I have a degree wheel set up. I also have an indicator and sum specs from comp cams. I have alreadty located TDC and removed the piston stop. The cam specs I have came from matt at comp cams. After I sent him my sieral numbers of the cams. The info given says,

Intake opens at -2BTDC and closes 34-ABDC
Exhaust opens at 37 BBDC ans closes at -6ATDC

From TDC what side will open the vlaves first in number 1 cylinder?

One more question does BTDC mead before top dead center?
and does ABDC mean after bottom dead center?
 
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