Opinion on plug color..

#1
Hssk50 with the big valve, thick rings. Ported intake and exhaust, using a PZ20 jetted up to #92. Plug has a few hours mostly riding mid to full throttle. Open pipe exhaust. A154E965-E193-42DA-8F4E-CF7D63A26AC6.jpeg BE19B7CF-A9B9-4AAC-9346-41DB465D7548.jpeg 19B20CCE-6DB0-4FFA-8BD6-C5327E228606.jpeg EAC39F5A-B8B8-47D4-981F-A2F1F4945F63.jpeg
 
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#2
No expert here, but I would think it could be a little fatter. All of my stuff runs pretty good and when I look at the plugs they look a lot darker and more loaded up than yours.
 
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