crankcase vac pumps?

[413turbo]

what cars and years have a vac pump that people are using on the buick? i've been looking, but haven't ran across any in the yards yet.

 

[turbofish38]

Electric vacuum pumps?
Try any LT1 Camaro/Firebird,Caprice/Impala/Roadmaster
The 95-96 vintage W-Body(Lumina,MC,Cutlass,Regal,GP) with the 3.4 DOHC V-6 used them too.