120-125
I commute 21 miles up and down hills with stop lights and many stop signs. Carburetors rejeted with specialty spares pipes - always nice light brown spark plugs and dark gray exhaust, 105 psi compression, 26,000 miles on bike - I ride with rpms between 3000-4200. speedo during commute 40 - 80mpg. I get average of 38 mpg on commute and as high as 43 mpg on highway 70-80.
you get a little more milage with a lot of moisture in the air as with riding in ther rain but if fuel injection makes that much difference I'll be looking forwrd to see what the 2010 thunderbird gets with my kind of riding.
Gary
