What to do with bowl vent?

If what is meant by plumbing into the breather from the valve covers, I would not do that. Any flooding would dump fuel right down into the crankcase. Maybe he means up into the air cleaner....?

BTW, all sorts of carbs vent the bowl where it can go all over the intake if it floods so it is not an 'out-of the-ordinary' setup..... but then again cars do catch on fire sometimes!