How tight should trans pan bolts be?

[Chevyman680063]

Well I had to get another pan for my transmission since the old one seems to be warped and was wondering how tight the bolts need to be. I've heard they should be a little tighter than hand tight, that they should be torqued to a certain spec., and that they shouldn't be torqued b/c that would be too tight. So which is correct? Also, is there anything I can put on the pan to help hold the gasket in place while I'm installing the pan? It's a TH350 if that matters. Thanks in advance for the help.