If I use the pistons I currently own, coupled with a 6.200 rod and a 3.795 crank, I will have 398 Cubes and the pistons will be in the hole .0225

Any opinions on this? Should the block be decked for a zero deck engine?

This will be using hellcat heads and I am shooting for a compression ratio of 9.5:1

If I did my math right they will be 9.53:1