How old is this engine? A fuel washed cylinder will have really clean piston tops. Pull some plugs and look down the holes to see whats in there.

How does the exhaust smell? lean (really hot ), rich ( burn your eyes )?

Has the oil been changed each time the pump went bad? or did it correct it self though evaporation?

How about coolant, is it using any?

I can't figure why fuel will cause a draft tube drip, it should evaporate before getting that far. I understand the high oil level. but what exactly is dripping out? oil or water vapor?

Keep us posted, Joe.