I doubt that you'll notice much from 2 degrees of cam advance either. I think most do about 5 degrees if they're gonna do it at all.
BTW, the only real reason to advance or retard the cam is if you have the wrong cam for the application. My advice is to try and make sure you have the right cam to begin with and then install it straight up.
Rev
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'66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi.
O.B.C. #2
'66 coupe
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