I took her out for a littel ride 60 miles at 80 mph, 27 miles per gal. I think about 85 is top speed, don't know if I should put 130 main jet in or not. I don't think they will give me better gas mileage. Coming back I ran 70 mph and got 32 miles per gal. Now I will try it 60 MPH. Hope I don't get run over on the freeway.rudyr