That's right fordkid68. And you would lose another 17-25% (depending on the drive train), if you measured it at the rear wheels. That's how most of us have to do it (on a chassis dyno).
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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