Smoking when you are hard in the throttle and the intake vacuum is low is not normally caused by intake leaks. The general symptoms of smoking out the pipes at high RPM's and hard throttle indicate ring problems. OP, I assume this occurs with sustained hard throttle (not just smoking when you first put the hammer down and then it clears up)? Who knows if the hone was right, the bore was right, if the ring gaps were right, if the ring side clearances were right, etc....
