No filter, living on the edge.
I've got a #45 idle, maybe I'll give that another, more indepth try.
No air leaks. Oily plug seems to be the result of low rpm running.
wide open looks good, 87-90 seems to be my proper range. of course, you have to wipe the low rpm oily off before you can read it. there is no way I'm getting rich/oily plugs out of a 87 at top speed, so it must be from lower down the range.
break in was done a long time ago. I run in hard, 50:1 dino oil, doesn't take very long.
I can't get past this notion that I need a different needle...