Help to identify some parts for a couple noobs

[2Luke2]

So my girl and I realized when looking at the firewall there were a couple things on it that we had no idea what they were. I figure now would be a good time to ask before we try to reinstall the engine at some point in the near future. If anyone could list the parts we have highlights in red it would be helpful. I took a photo and than circled the parts we are most confused about. Hopefully it's legible. Number 1 are like three holes with pipes sticking out of the firewall. Three is the big round circle in the corner behind the hoses.

Thanks!

[b5blue]

#3 blower motor #2 voltage regulator

[2Luke2]

#3 blower motor #2 voltage regulator

Thank you!

[A383Wing]

the one "pipe" sticking out of firewall under blower motor is the blower motor fresh air tube. It should have a piece of rubber hose on it going to the big hole in the blower motor itself.

The other 2 "pipes" are drain tubes for the AC system, those are like they should be so no condensed water goes into engine compartment

Bryan

[2Luke2]

the one "pipe" sticking out of firewall under blower motor is the blower motor fresh air tube. It should have a piece of rubber hose on it going to the big hole in the blower motor itself.

The other 2 "pipes" are drain tubes for the AC system, those are like they should be so no condensed water goes into engine compartment

Bryan

Awesome! Thank you for helping us become a bit more knowledgeable about our vehicle!

[TexasGeneral]

just to clarify... I believe that voltage regulator goes to a two wire alternator not a one wire..

[A383Wing]

just to clarify... I believe that voltage regulator goes to a two wire alternator not a one wire..

starting in 70, they were dual field alternators