Sometimes it's hard to get the small passageways clean even when the rest of the carb looks clean.
Did you soak in some carb leaner overnight, or just spray it clean?
I have had to clean passageways with a small diameter wire. Sometimes you can't clean it enough.
Hard to tell from here. Can you tell if it is going lean on fuel (not enough fuel), or if it is getting rich (too much fuel)?
Did you "kit" the carb with new needle and seat? If so, did you check the float level? Too low and it may not let enough fuel into the carb.
