Yes I've inspected the portions of the wires I can see, they all look good and the routing looks correct. I've pushed them around with a piece of wood while the car was idling and I didn't hear any change.
The wires are whatever the cheap brand was at the parts store, the plugs are AC Delco.
The car has always had a little bit of a rough idle, that i could never get to go away with Sea Foam, new O2 sensors, plugs + wires, etc. So I wonder if my coil pack has always been a little bad. I've tested the resistance before and it was OK though.
I just looked on O'Reilly Auto Parts' website, I can get an AC Delco coil pack for $46 bucks. Seems pretty cheap, I'm not sure if its refurb or not. It says "DELCO REMY" in the description, I don't know if that means remanufactured or what. I'm thinking about going and picking that up, I think they are pretty easy to put in?
Also when I had it in the shop for an oil change a few weeks ago they said my vacuum lines were looking bad and may need replaced soon. Could that be it?