You might consider a head gasket also. Your compression is kinda high but wouldnt be bad to run low boost on a DD. The higher the compression, the less sluggish it will be out of boost (obviously) but you will be able to make a higher peak hp with lower compression. There is a reason MOST forced induction motors have a lower compression ratio. Its been proven. You will need fuel upgrades as well.

My vote is this: keep your bottom end the way it is, esp since you already have aftermarket pistons. I think the higher compression and low psi would be fine for a DD. Good Luck