Sorry I may not have explained my situation clear,I was thinking of putting back in my car the same plastic set up as what is in the Trunk photo (which is of someone else car I found on Google).If I did I would need to know where the vent tube coming off the plastic set up attaches to.Or if I didn't put it back into my car & left the tank blanked off with the plate would my non vented fuel cap work ok with the drilled hole as a vent.Cheers Phil