Not sure why you are using RTV on a BB oil pan gasket.

The stock paper gaskets have always worked for me.

But here you go:

http://www.manciniracing.com/marareoilpan1.html

Unless you absolutely have to have a Milodon oil pan gasket.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.