stock b20 sleeves do not like much boost at all. when you built this motor i hope you atleast used arp rod bolts or else you will more than likely have problems before you even boost it.
if you really want boost, i would swap out the b20 block for a ls block...its a little more turbo friendly, just to be safe rather than sorry. still, even with the ls bottom end i would put pistons/rods in it, then you'll be good for your goals if tuned well. OR sleeve the b20 and get pistons/rods
btw, your b20z is not "high compression" like you said.