I suggest you leave your boost low for a while.
This is being brutally honest; but you don't know how to tune a truck. I think that your truck is a bit extreme to just start cranking on it, especially considering your past history.
Sorry if this comes off sounding bad, but I just have this feeling I can hear a kaboom coming...
Please be careful.. your truck is beautiful, and I'd hate to see that motor go kaput. Take things slow, learn about your truck, learn how to datalog, learn the truck's limits, what it likes, what it doesn't like. Use hard facts and data to tune, not instinct and guesswork.
Once you really know what is going on, then start tinkering and pushing the truck.