Well now I am wondering if it is working properly because getting on the freeway from a dead stop today took more like 20 sec. not 14. I may have to take off the U-tube and see what is going on. It could also be that the engine is not tuned to optimally. Maybe I should change the air filter which I haven't looked at in 6 months. It can get gunked up with oil. I haven't changed the fuel filters for a couple of years either. Weakest link theory.