More than lkely you will end up with a deck less than 9.98 I have seen blocks that need .020 or more cut to square things up. You need to square deck the block. The deck heights from the factory are all over the place. Decking it will get rid of alot of the chamfer on top of the deck, give you a nice flat surface for the gasket to seal and equalize the height of all your pistons for quench. I have a 470 on the stand for a backup and it runs very well for for it's size.
My opinion is to run the quench as tight as you safely can, this will make more power and reduce the chance of detonation. On a big bore like a 4.375 I think .040 is safe and on a small block I think you can tighten it up to .035 without seeing witness marks on the pistons or heads.