Rough Idle

[stlryda79]

Is there a dedicated vacuum port?

[yel-low]

Any vac line should work just fine. Things are starting to fall into place now. The intake manifold gaskets should not be reused. They are a crush type metal gasket. Once they are deformed (ie. Flattened) it is a 50-50 chance that they will not reseal leading to misfire/vac leak/improper fuel-air ratio. Replace those with new ones ASAP. Same goes for TB gasket. Compression numbers also seem to be on the extreme low side as well. You should be getting 170+ dry all the way through. Wet, you should be touching the 200psi mark. Looks to be an old tired 2.5.
Good luck with your motor. Hope you get it all sorted out.

[stlryda79]

Is there a tighting sequence for that and will it only cause #3 misfire?