Remind me what ignition you have. The plugs look like you have the timing pretty well covered, except maybe you can add a skosh more initial but no more total.
If you have points and no ignition box, that may be as good as it gets. If you have some form of electronic ignition, it’s still a bit rich at idle and cruise. I can’t see the WOT ring in the bottom of the plug so I can’t say.
Heat range may be one step cold. BTW, remind me what engine and heads you have. That’s a short reach plug.
