sorry no pictures but..... A friend of mine bought a used turbonetics turbo, we measured it out and it looks to be a .50 trim with a .63 a/r, our numbers were a little off but thats as close as we could get them, on the back of the compressor housing the number 20202 and the exhaust housing had 20357 stamed right on the flange where it mounts up to your manifold, so anybody know what this is? we tried calling turbonetics but they said it needed some white stamped plate somewhere, but this is an older one so it didnt have the plate on it, it had the turbonetics logo in the little rectange on the compressor neck. and a blue anodized back plate. so if anybody is a genious with these things let me know! thanks

 

i'd like to know also, in the same predicament

 

from my findings..
http://turboneticsownersclub.com/turbos/TNcat2.pdf
Its the T04B with the big shaft(SuperS)

 

f2707 on the compressor, and 20357 on the exhaust flange

 

thanks!