Kings performance parts?

I just ordered a 32 tooth rear sprocket. I saw a ported cylinder and a thrust racing exhaust on the Kings site. Does anyone have any reviews on either? I used the search but didnt find anything.
The ported cylinder you are talking about is a three transfer port cylinder and needs a reed valve intake. The same as what comes with the gt 80 engine kit. The transfer ports are good sized, and the casting lip is fairly well removed from the top of them needing little work, The intake and exhaust ports are large.
 
NGK 5944 for a 7 heat range.
That 7 dissipates a lot of heat from from the engine but good overall.
If you are in really cold clement you want a plug that keeps more heat in the engine, that would be the NGK 4048, it has a 6 factor for heat dissipation.
In extreme heat with a modified HP engine there is the NGK 6742 with an 8 rating for dissipation of heat which pretty much eliminates all engine heat from staying inside when it's really hot outside or being rode really hard.

I don't know about autozone, but my CarCare dealer gets them same day.
Also look at http://SickBikaParts.com for what plugs they have in stock,
 
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