Strange Oil Leak???

[jpabberton]

I have a oil leak from the second bolt on the right front side of my intake manifold. Its a Edelbrock.

There is no leak when the truck is running and no leak when I shut it off on short drives. There is a small, about a tablespoon full drop of oil in the indent where the bolt screws in the next morning when I go out to look.

Could the manifold be cracked? I'm thinking about trying the non-hardening thread sealer. Any suggestions appreciated.