Burning oil

It's been a little over a month of no smoke and it's started back again....

During this time I've driven the car a lot, including 700 interstate miles in one day. With my 3.55 gearing I cruised most of it at 3000rpm/65mph. No issues.

I recently installed a locker and new rear leafs, so today I spent most of the afternoon driving, a lot down gravel and dirt roads to test everything out. A lot of relatively low rpm, low speed driving. I did go through a tunnel and rev it a few times but nothing crazy. No high rpm pulls or anything. I noticed sitting at a red light on my way home it was smoking again.

Is it possible to fuel wash or unseat/unmate the rings to the bore by reving? Carb was completely rebuilt less than a month ago and working properly so maybe something with oiling the cylinder walls?

Another things is I changed the oil last week and it has about the same time on the fresh oil as it did the last time it started. Maybe an issue with the oil itself? It's Driven GP-1 15w-40 synthetic