I would just like to hear what kind of mileage you guys are getting out there.I am stock and wondering if I am going through too much fuel.I do notice black smoke(rich)when I am under WOT and the tailpipes are very black.Is this normal for these or should I be doing something to fix it like better air intake or anything like that.I would appreciate any input as it seems most of you know quite a bit about these cars and their characteristics.