[DanEC]

GTOs, 427 Corvettes, 383/440 Plymouths, my FE ERA - I've never had anything that got over 13 mpg on the highway - 8 - 10 mpg in town. Only after EFI and high rear ends/overdrive transmission started being installed did I see anything over this. And then the exception is my 2003 Lightning PU with overdriven supercharger and computer tune - gets about 10 - 12 mpg.