What Belongs Here?

Wish i could help my 70 swinger is differant. I just removed everything from my engine bay. MY pipes coming through the firewall are not in a big hole like that. Mine each have an individual may 1in hole? that they come through. Then i had a plate that was help on my like a two sided foam to cover up the gaps in between the tubes and the firewall. that plate had two holes drilled into it and went on before you put your a/c back together.