HEhe, ya I have been jammed............. waaaaay behind here. But I guess I can unwind a little to answer your question. My 76 is a Turbonetics T4 standard 76 compressor wheel with a tad larger than a Qtrim turbine wheel. I've run 8.90's on as little as 26lbs of boost with spool up on the line in less than 2 seconds. I just finished a similar combo car for a customer using one of our new 74 turbos and broke it in last nite at the track with a 10.40 on 12lbs of boost at 21 degrees of timing, lifting at about 3\4 track. Needless to say, I was impressed. These turbos, although not large wheels, do have large compressor and turbine housings. Not the kind of setup we would use for a stock block.
I plan on installing one of our new CPT82BB turbos soon, look for that one to be INSANE........ The other ones are non BB.