|
If you really have 273's your mpg will improve with 373's unless all you do is drive on the highway. I have 390's with mixed driving. My mpg went down with the extra low gear but not too bad. My car would not be good for a regular long distance flier on the highway.
__________________
2000 GT 4.6L 5spd, BBK cold air, BBK 75mm TB, Bassani catted X-pipe, (no headers) FM catback, 390 gears, SCT chip, Steeda Pulleys, ported stock plenum, Comp Cam XE262AH. RWHP 260, Torque 282
|