#6 not firing!

What your saying makes perfect sence to me. However the sticker on the inner fenderwell indicates this vent going directly to intake vacuum. Like I said, your explanation makes perfect sence I just dunno' why the sticker wouls say this. The only thing I was thinking is that there was some sort of diafram or something that has failed and was letting fuel into the actuall hose. Ahhhh who knows but from your explanation I am thinking I should atleast uncap the vent and maybe put something to filter the hole so nothing big gets in it. I imagine that if the bowl isnt able to vent itll build up unwanted pressure.