You didnt ask, you are preaching your thoughts on why the 3.27 is not the right gear choice, despite those of us with running, driving, auto, turbo cars, telling you otherwise.
Please go back and re read your first post.
Then, go do your own testing, and report back your findings.
And FYI, its not that hard to learn how to set up a rear end properly.
1989 Mustang LX/Dart 428w/Turbonetics 88mm/AFR 225's/Solid Roller/Glide/FAST XFI -Nearing Retirement!
2011 FFR Type 65 Coupe (build in progress)- Dart 428Twin Turbo, Fast XFI, T56 - Just a street car!
2012 STI - Cobb stage 1 tune daily driver