I just went through this thread and . . . 520 miles to the tank!!!!! You got to be kidding me! I did a little happy dance the first time I got 400 m-to-tank!
To the person who has the high-flow converter, that'll give you cruddy mileage for sure.
But a lot of us seem to be in the 340ish range, which is what I avg with mixed city/highway driving. Fresh air in the tires, clean intake filter and falling asleep as the 4banger slowly eases its way through the rpm gauge helps get better mileage.
Seems like the big 3 really help out in this department, though.
And 520!!! Good lord!