Spark plug reading

4spdragtop said

Thanks, I noticed the "rounded" areas. Wasn't sure if they were like that new or not. Or if that was an issue. I'm new to analyzing plugs lol.
Timing is not locked out. 18* BTDC, no pinging.
Thanks.

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Interesting. How much total timing is that?

I’m asking because it looks short on total.

Also, if you look at a new plug you can see how sharp and clean those edges are.

I’m not saying the plug is raging too hot but it’s close to being plenty warm. Adding in a bit more total may end up making that plug too hot.

You are managing the heat the plug sees and fuel and timing also affect plug temperature.