I always seal the intake bolts with pipe dope. If you dont the oil wicks up the threads and will puddle on the intake. The 4 center bolts seem to be the worst for it.
You may also have gas dripping from your throttle shaft, have seen that a few times before.
Yep....The intake bolts thread right into the lifter valley where there is crankcase pressure. Oil is splashing around and pressure is looking for an escape path....especially if the PCV system is overworked or non existent.
