HELP: 2010 Aveo Brake Booster Vacuum or PVC hose location

Working on my girlfriend's Aveo. It had a clogged cat a bit ago and was replaced and recently started jumping a bit while shifting. I'm figuring where the cat was clogged it got super dirty and just isn't getting a good flow. I have experience with seafoam just can't find anything for her particular engine to see where either of those hoses are. Was going to do the 1/3 method.

Which is preferred? And anyone who can help me locate them I will appreciate it.

Thanks!

You could disconnect the vacuum hose right at the booster, however I suggest just taking off the intake hose and slowly pouring seafoam into the intake with the engine running at ~2000 RPM

-P.s If the cat is already clogged seafoam likely won't help.