Smoking 273, opinions?

How long has it been since the head swap and the intake? Did it smoke before that?
I've had it for a year and its done it since I've owned it. The guy I bought it from neglected a lot of the maintenance because he would let it sit for a loooong time and almost every gasket dried up and developed a leak. The build probably only has around 2000k miles on it and is around 8 years old.

Check all the intake bolts, it might be sucking oil vapers from under the intake on 6 & 8 runner
This was my next thought, I wouldn't be surprised if the gasket was shot, every other external gasket had been.