I was not talking about the top, this was at the lower end around 2500 as I remember. Autocrossing needs to get off the corner like driving on the street and this gave me a great gain at the lower end. I could not find the two dyno results that I superimposed to show the delta.

Yes there is some gain in the big end but that was a plus overall. Please see the gallary for more photos showing the results. I also have some charts from the Carlisle 2009 dyno jet runs showing the fuel air mixture tracking over the power band.

Woody