The tests that I've read for the '68 428 CJ on bias ply tires were a best of 13.65 at 101-102 or there abouts. Certainly drag radials would improve those times, but not enough to beat an '03 Cobra.
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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