Help, sorry i's long

Hi guys i'm new to the board, and i have a couple questions i'm sure you guys can answer for me.. First, i have installed a Garrett T-3 on my car.. My question is, on the compressor housing it has a.r. 60 M-11 stamped into it. I was wondering what exactly this means. Next is my car bogs down in 3rd and 4th gear around 3000 rpm.. I don't know exactly what is causing this. It does fine in 1st and 2nd around the same rpm.. any help would be greatfull, Thanks guys..

http://natoubb.turboford.org/Forum1/HTML/000243.html.
All Ford T3 had a 60 A/R compressor side

Bogging at 3K may be a fuel problem. I'll e-mail you the diagnostics later today.
Also check the codes


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NATO Member. it's not a vice, it's an obsession
Good judgement comes from bad experience, and a lot of that comes from bad judgment.
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm