Intake gaskets small block

I would get rid of the tab, it's not doing anything, I think that they are there to help hold both gaskets in place, but don't do a very good job of it. Your going to put silicone in those corners anyway. Make sure that your holes for the intake are a dead line up with the head holes, do that before assy. Not final assy and find out things are off. If the china rail cork/rubber gaskets are too thick, pitch them and put a tall bead of silicone (the aerosol can type) across the whole rail.
Clean up after torqing, and let it sit for 24 hrs.