Probably but holes aren't in the main neck part, just the collar but the breather has snapped off too. Currently we are doing a lot of repairs ready for MOT so we have pulled it off the road for a couple of weeks.
seems it is a common problem, make a breather from a bit of 6mm copper, easy to bend, then clean up the rust and wrap it in two layers of fibre glass, bonding the breather as you go,Rick