[san rensho]

Make a concoction of acetone and auto tranny fluid, one to one (I said tranny, heh, heh) and spray all fasteners while they are hot. Easy when loosening. If the fastener is stuck, try some taps with a hammer, then try tightening the fastener. I know it sounds crazy but sometimes tightening will break the fastener free.

I would set your torque wrench at twice the torque spec for the fastener and tighten, loosen the fastener until the torque wrench clics and if doesn't come loose, try some more solvent and taps. Take it easy, many horror stories of having to drill out and tap the manifold bolts.

If no luck, then a torch to heat up the fasteners may work.