Black smoke out of exhaust

busanewb

Registered
Just got my hayabusa dyno tuned. Made okay power with a brocks alien head. One thing I noticed when doing the drivability tuning was the exhaust got red hot and way high in the rpms I got some black smoke out of the exhaust. Is this normal for tuning or was that possible detonation?

Bike seems to be fine on the street and still pulls hard. Any input would be appreciated
 
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