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I have a 327 with assorted aftermarket performance parts that I put a comp 270ah-8/ 108 lobe pn#12-321-4, the engine runs excellent has a nice deep choppy sound , the only thing is my vacuum is about 5 at idle, I set the vavles on this right I know I dont have them too tight has anybody used this paticular cam, is this normal for the vacuum:noway:
 

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What is your timing at idle?
 

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