[David Craig]

I use some of the silver anti-seize. I don't know the torque. The NGK package says something about tightening by hand and then turning an additional amount. The additional amount was something like a 1/4 or half turn.

I started to use the anti-seize after I noticed it was very difficult to remove the old plugs. I'd also seen a post on this site about one member having broken a plug when trying to remove it.