Picture of the plug. But it isn't too accurate as it is not from a WOT plug chop but just some messing around and maybe even idling.Stock intake port duration is too little. Increase it to 120 degrees open.
After that if you still want more speed then raise the exhaust port 1mm at a time till it's where you want.
Make sure your main jet is optimized for speed. Too big or too little will limit speed. What color is the plug?
Also looks like I have some "nice" blowby
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