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Originally Posted by TreeDimensional  I had a '79 F250 w 300 CID in-line six hooked to a 4 spd strd, we used to pull 2 stock cars with it and still got 25mpg. |
Afriend of mine just sold his 78,with a 300-6 and a 3 speed.it only got 10mpg.Heck my dad's f 150 that we did the conversion on only gets 14.It does alright for a 1 barrel.