What are these vacuum parts?
 

Hello everyone! My name is TJ/ mudflapp, I have a 1983 c10 with a SB 350. Im installing a new manifold this weekend, Im trying to eliminate some vacuum lines in the process to clean it up a bit. There's a couple vacuum lines that I don't know what they are going into/what they even are . I took some pictures for you guys maybe you can tell me what they are, and if they can be eliminated? IN the fourth picture (with the red circle) that is right under the header manifold maybe even looks like its attached?? no idea let me know guys!!

Thanks: TJ, aka mudflap:chevy:

Re: What are these vacuum parts?
 

Top two pics are cruise control server and linkage. Can't make out second pic. Third pic looks like vacuum valve for emissions.

Re: What are these vacuum parts?
 

Have you done a smog test lately? my 83 has all those vacuum lines and they have to be their to pass the visual, be careful what you take off as later down the road it might all have to go back on ;)

Re: What are these vacuum parts?
 

Top pic looks to be all cruise control related. 2nd pic is windshield washer hoses.
Third is for the ESC which is emissions related must stay on for Calif. Fourth is the EFE system or heat riser to the older crowd also emissions related and must stay on in Calif.

Re: What are these vacuum parts?
 

Thanks everyone! Also the truck is NO LONGER in California. :chevy: