I always shift my C-4 manually when racing. I would never wait on the downshift linkage and would never let the governor decide the shift points. I have no experience with the AOD's, but it doesn't seem wise to let the tranny work in the "automatic" mode when racing.
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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