Did it just start doing it or was it doing it for 10hr? Have you looked at any thing yet like the plugs yet. A bad map sensor could make it run crazy rich some times and still be within its programmed range and not set a code.

Something else came to mind....don't know
how much it would effect it though, but I'll
throw it out there.

Did they put the valley tray ( baffle) back in ?

They have a PCV valve that plugs right into the intake
manifold between the rear of supercharger and the distributor.

If that ( baffle) is not in there, the PCV valve would
be exposed to any splash lube that might get thrown
up towards the bottom of the intake, and would certainly
suck it in.

Its only doing it one of the motors ,its def richer then rich

kind of like you

Once you figure it out, these motors do not consume oil at all. I check the oil before running them out of guilt....Something is definitely wrong.