95 Altima intake manifold gasket

[termi]

I need to replace the intake manifold gasket. Some of the bolts looks very difficult to remove.Can anybody provide some tips before I tackle this job?Thanks

[Cold_Zero]

We use to douse the bolts with liquid wrench a few times. Spray, let it sit. Then spray again. Then using the heavy duty socket wrench, try and get the bolt to budge. I have become of the mind that air tools are the way to go on ceased bolts. They tend to apply pressure more evenly, than hand wrenches.