Forcing hot combustion gasses past unseated rings doesn't seem like a good idea to me. I would take a more gentle approach and hope for a more gradual "wear in". Moly rings should do that without any thing extreme if the cylinder walls were honed correctly.
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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