Dan I think you are getting before and after mixed up. Your own message states. "The 1/2 stainless steel vanes straighten the air before it reaches the throat of the carburetor and achieves better air/fuel distribution."
Tha tornado Goes after the carb and keeps air fuel mixed. IMHO -- Eric Pitts Terre Haute Ind. http://eric.pitts.mystarband.net "Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, chocolate in one hand, body thoroughly used up, totally worn out and screaming "WOO HOO what a ride!"
