Just found this thread (and your other), this is fantastic. I have been doing a lot of reading on turbos lately but I have no practical knowledge/experience but have been researching putting together my own kit with some help from a couple people much more knowledgeable than myself, but why reinvent the wheel if there is no need. Love that you kept the stock air box.
How would altitude affect the turbo and could you compensate with an electronic boost controller? Looking to go forced induction once my stroker build is done, broken in and I am satisfied everything is running right. Also, since I am in Denver I would need to pass emissions inspection (sniffer and OBD scan), I don't know how accurate my info is but when I talked to the local inspector about LS swaps I was told that any programming changes detected would be an automatic fail.