turbo charger questions

[MAGMOEMONTE]

a friend has a turbo for sale but i cannot find any info on it....looking for some. it is a garrett mdl# th08a70. compressor a/r of .95, exh ar of 1.23

 

[86Cutlass383SR]

I would venture over to Pro-Touring.com and poke around in the Power Adders section. They may have that info. If not, register and post the same question. Many guys there run turbos and might be able to answer that question.