The highest I ever got was 365 miles on a tank with NO highway miles (99 SVT w/ SHO-Shop CAI and Tru-Bendz cat-back). It was all around-town driving and going to school and back (1/2 hour away, no more than 40-50 MPH the whole way).
Matt
2002 Subaru Impreza WRX (WRB Stage 4+)
Old Rides:
1999 Sil-Fro SVT Contour 3.0L with goodies (Totalled 6/21/06)
1988 Bronco II (Sold)
You know you launch hard when you beat oncoming traffic through their own crosswalk lines.