Fostang, I only get 12.5-13 mpg in my '66 coupe with a C-4 and with a 3.25 axle. That's with a 306 and 300 hp. Cruises about 3000 rpm at 70 mph. I have my carb set up mostly for performance (jets, srings, etc.). I have gotten as much as 14-14.5 mpg, but with different carb set up biased towards economy. I just want max performance and screw mpg. I, personally, am willing to give up some economy for a little lower E.T.
Rev
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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.
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