As said I would add a breather in the round knockout there showing on the rear half of the drivers valve cover for starters to get the system plumbed back to "normal" & see how it acts & I would clean the lower eng at the car wash & then romp on it & pin down exactly where it is leaking from & if needed put it up on stands & nail it to see where the leak is. Might be excessive blowby & you get ONE shot to have a good ring breakin/seal & there's a good read at www.mototuneusa.com & scroll down & read "breakin secrets". it's a motorcycle site but the principle is the same but hopefully a breather will take care of this for you.