slant 6 rebuild and upgrade list

Here is a good article for the wheel and housing sizes explained:
Turbo specifications clarifications - Car Forums and Automotive Chat

And here are some Garrett maps; they are pretty easy to find.
COMPRESSOR MAPS

BTW, my numbers on 0 boost flow for 225 ci come in around 18 lb/min at 5000 RPM, assuming a VE at 5000 RPM of 80%.