That's gonna be a strong runner when you're done. Banks offers a turbo kit for this engine, but you don't see many of them around due to crank failure. Just take a good look at the harmonic balancer from time to time... they are a root-cause of low end failure in our beloved 6.2's. You can catch a bad one & replace it before things get ugly. Thumb's up!
Whats the smoke out of the intake from, on startup, are the bolts on the intake not tight yet? Sounds good! I maybe heard a rattle after you shut it off, is that the clutch fan spinning on? Mine does that two