805, I haven't been following much of your posts, or your build, and I'm not trying to derail any plans you have, but have you considered using a centrifugal? An ATI P-1SC would push enough air to make and exceed your hp goal, the piping would be FAR easier, along with the intercooler plumbing, and running those on a blow-thru setup is very common.
Granted your torque wouldn't be anywhere near as impressive as with a roots type or twin screw-especially down low...
