Okkkk, we did a mileage test last week, wife drives 75mi a week going back and forth to work(that's straight to work and straight home)and it would take 4gals, last week she did the exact same thing straight to work and straight home, this time it only took 3 1/2 gals, also it would take exactly 1qrt of oil now it is still on the full mark, so far I'm happy with it.... Next step will be the induction, now if I could just find the right size carb, in the meantime I guess I could start modifying the intake.