Don't have one on me...but if you look at the lower HP curve the ragged line at about 8000rpm is where it starts richening up...the A/F ratio got so rich it dipped of the chart, that's what was causing the issue at higher RPM, it ran out of guts. As you can see from top chart, doing the mods smoothed out the fuel delivery right across the range...
Took the airbox snorkel out and put in smaller main jet....
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