I thought that the stock TPI vacuum fittings would work on the HSR. What are guys using, and where can I buy?

Can get fittings from any auto supply place.
2 larger holes are 3/8" NPT ( one should be used for brake vac ) and IIRC 2 smaller are 1/8" NPT

or you can get them at Lowes or home depot.......they may be cheaper there. Also your gonna plug 1 or 2 of them, i cant remember. You can get them at the same place.

A ton of information here: https://www.thirdgen.org/forums/alte...ealth-ram.html

I used all 4 vacuum lines on the back of mine. AFPR, brake booster, IAT, and I think the last one was for the cruise control.

Thats the exact same thread I used to find out what fittings I needed to run my vacuum lines today lol.I got everything hooked up except for the vacuum lines that are coming out from the hvac.I dont know how I should hook them up or if there was a check valve inbetween them.Anyone got a diagram for that?

Check valve on HVAC / cruise line keeps vac in system when engine vac drops
Line should run
Intake - check valve - then from valve -rear port to HVAC line / side port to vac ball T'ing off to the cruise on the way.
If you don't run the check valve, your vent position will change every time you accel because the vents will return to the default position with no/ low vac