Turbo 383 in a A-body Barracuda

No way an 8.75 is stronger. I think your sources need to go back to rehab. I can see the pipe burns on their lips from hittin the pipe a lil too much.
Seriously though, it's not like your gunna shock the housing real hard with a turbo. Don't be like me, run what you brung!! Stay on trac so the car gets finished. If you have problems, make the swap then.