Turbo Ident. Help
 

I have a Garrett Turbo... I was told it is a T3. I'm trying to find specs. for it with no luck.
I went to look at the Turbo setup, and got these numbers off it:
A/R .63
.60 <-- inside Turbo
AEZE 9G438-AE
465978-3 <-- brought me here
MD0393 (I thin it's a zero, not Oh)
AM43

Ford Mustang -83 140CID na 465978-3,4 Garrett TB0322 <- from powerpage.dk

I'm looking to build a 300+whp car, but not finding info on my turbo isn't helping me out. If anyone knows what those number mean, it would help me out a bunch!

Think this turbo will ge good for my needs?