head gasket and deck question

Hey all. I am running a 511 RB that is still in the short block stage. I am useing Ross flat tops with valve notches. I had the machine ship zero deck the block. I want to use Indy heads with the smallest chamber volume I can get (I thank) to raise compression to around 13:1. I have read other coments that it will not work. I need advise on head gaskets or just opinons on this set up. thanks