Camshafts and Compression

Valman said
Well, that’s a surprise. It looks pretty rich to me. The photos do look slightly darker than my eyes tell me.

You can see the band at the bottom of the insulator, but it’s very thin.

I’ve seen them lighter than that, new fuel and a re-run maybe..

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That’s very rich. Almost pig fat. But not quite. You need to strip some fuel out of it for sure and the all in timing looks a degree or two soft. Get the curve sorted out then work on the fuel. The heat range is about perfect.