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C3 Corvette 3 speed man v 4 speed auto

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jdunne:
My 74 has a hot 383 with 3.08 diff and a 700r4 gearbox,cruising at 100 kph gives about 22/23 mpg,around town about 14/15 mpg,on the track about 5 mpg(it might be less but i'm not game to check):fun:fun:fun:fun

RHD.68.l89:
IF you have a choice, choose a car with an O/D fitted. Jdunne's 700R4 is a 4 speed O/D auto and I have a 427 tripower with O/D manual 5 sp. I can easily get 400km to a tank, less when playing.
Usually the first gear is lower as well, giving you better "off the line" performance.

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