A full turn on the rocker arm studs adjustment nut after finger tight sounds a little too much to me. I use about 1/2 turn after finger tight. Too much there will not let your valves seat completely. I'm not sure that is what's wrong , but it could be. BTW, we're talking about a hydraulic lifter cam as apposed to a solid lifter cam aren't we?
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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