My intake manifold is apparently leaking at the gasket so I bought a new gasket and
now need to install it. Besides cleaning the mating serfices should I use any kind
of gasket sealer? Any tips would be appreciated.
Thanks,
Dave

If the head and manifold surfaces  are both flat then no sealer. If worried about a coolant leak then a little silicone around the center hole.

I read somewhere to put never seize on them?? Said it helps in sealing it and also it doesn't tear the gasket up if you take it apart later.