Looking for some insight here. I’ve got some soot in my intake runners that only travels up a bit into the manifold. Rest of intake track is clean. I don’t have the crank vented back into the intake. New 1hdt engine with just over 10k on it. Brand new genuine Toyota head and crank. Only thing I can think to blame is the valve timing but everything is/was lined up, crank, pump, and cam all good at TDC. Timing set and verified by turning crank clockwise per the manual. Timing gears were all line up per service manual too. Anyone ever run into this? It’s in all 6 too.