SLANT 6 a GAS GUZZLER?

speaking of oddity trucks my 2001 ram with a 360, and the old lady driving gets 26-28 mpg on the highway.... with me driving it's more like 18-20.

my 68 camaro with a cammed up 350 and 3.55 gears (no overdrive) gets 15-18 on the highway with me driving.

personally I haven't driven any six cylinder cars that got impressive gas mileage at all. they all seem to get simillar to the v8 version.