CUTLASS Vacuum hose, which one to manifold?

[rfpowerdude]

I am finally back on working on the silver car getting a few things done to start driving it again. I installed the in tank Walbro pump with regulator and return and reinstalled and wired the Derale electric fans with some new badass relays (and all soldered connections with 10ga. wire).

Been on jackstands for almost 3 years.

Now back on all 4

My question is which vacuum hose goes to manifold vacuum that leads to the interior HVAC selector and which one goes to the hot water control valve at the back of the intake? I think Mike R (69hurstolds ) can probably answer this at first glance.

I feel like it's faster asking y'all than trying to find my CSM. LOL Plus, I get to share with y'all my weekend activities on the car.
Thanks all!

 

[pagrunt]

System vacuum supply is purple, got water valve is gray.

 

[69hurstolds]

pagrunt got it right. Purple is the main vacuum. Gray can be plugged if you don't have a cutoff valve. Don't plug the purple though.

 

[rfpowerdude]

Thanks guys! Check that one off the list. Now just waiting for my new upper rad hose to show up and then fill with distilled water and ethylene glycol and fire it up.

 

[57 Handyman]

Nice car!!!!

 

[rfpowerdude]

Nice car!!!!

Thanks! I’ve needed to get back on refinishing it for some time now. It’s onnn!

 

[90hurst/oldsguy]

What is the black HVAC line for and where does it go to

 

[rfpowerdude]

What is the black HVAC line for and where does it go to

That sounds like the MAP sensor vacuum line. 69hurstolds or others would have to chime in to verify. It's not present in my pic as I don't have the factory ECM stuff anymore.