One more question ? The oil has oddly traveled up into the intake a little:dontknow:
Could it be possible that the new valve seal is leaking? If that was the case I would think the oil would be more strait down the valve and out?
Did you put any type of sealer on the two center bolt threads by the carb on each side? Oil can wick up the threads and puddle on the intake under those bolts. The two bolts in the center of the intake on each side of the carb...