all of those vortec/tornado/ect. are junk. What good does it do to swirl the air before it is mixed with the fuel? Wow, let's swirl the air going into the throttle body, then the butterfly valve will striaghten it back out, if not the intake runners definately will. Please.
guys guys....please.....this is an outstanding product that works well and very effective when riding your bicycle. (especially downhill, notice the horsepower increase)