ok, has anyone ever driven a carburated engine? Well if you ask the blade to open up and start dumping fuel, at low rpm it might not produce much power until the cam is on and ignition is full on. The Mazda tune must be adjusting to make better use of low end I would guess and on the top to compensate for the lack of headroom on the little K. But above 5500 or so it seems to me dump all the fuel in and open that plate to 89 degrees and rip it up. So if they use rpms as the table wouldn't this be effective with enough fuel against rpms. Good points I noticed about spooling and spiking boost. Thanks for good thread folks. And dread your point is the argument I am having with my son in law who will tune the car. He still is educating me about theory and such though. He seems to understand all the issues brought up about our car and that is good but I still have more questions yet>