I have a couple questions need some help

I got my motor out of the machine shop a week ago. It is a 360 long block.
I noticed the oil tab was not put back on it . The oil tabe behind the cam chain gear. What is its purpose? Does it wipe oil off the chain? Does it need to be on there? I am new to mopars. The other wuestion is i have the felprogasket set. It has like 4 intake gaskets in it 2 are normal material intake gaskets the other 2 are metal with dowel locating pins? I would not think the metal ones would be used in conjustion with the intake gaskets would they? Help me out please.