Multi-Vacuum Leaks

I have a 1991 Chevy Lumina 3.1 V6 I was just wondering if anyone can locate a vacuum diagram for me. I looked all over this forum and didn't find one. When my mom's mechanic fixed something awhile ago, He left multiple vacumm lines disconnected (Vacuum line leading to the vents, and a couple where im unknown where they lead too). It's my mom's car so I just want to get it working good again. As of now its very sluggish in acceleration at startup, and somehow my cat was clogged (Not sure if it has to do with the vacuum lines again). Im decent with cars but not an expertso I just wanted some advice and thanks in advance. Anymore info Id be glad to give.

Dom

P.S. Once it gets around 30-35, It sounds all boggy like the Cats Clogged. Also just replaced an O2 sensor...

cat maybe clogged. Did you look under the hood for a vcuum diagram? usually they post them here, otherwise, I guess I could go snap you a pic of the one under my hood. Although, you probably have a different 3.1 than mine. Mines the 3100sfi. With the rounded plenum, yours is probably the flat plenum. let me know, I can sure help you as best i can.

otherwise take a trip to a junkyard and look for another lumina, and look for a vacuum diagram there. Or maybe buy a haynes repair manual.