Rings for KB pistons 4.080

Intake removal was initial thought for consumption. When removed, it revealed 7 of 8 had wet intake galleys on the heads. Heads were not ported and manifold was magnafluxed by my NDI shop prior to machine work.
I did drive it with PCV disconnected and plugged at carb...no change in burn.
It still doesn't explain why blue smoke appears out the left dual only, real noticeable when decelerating.