I only wish I had the money for a BB turbo. It's a regular PTE turbo with the PTE .63 turbine. I had it originally installed in an 87 compressor housing but even the big inlet bell, along with some porting was still smaller than the compressor wheel. It's in the process of getting the regular TE housing since I don't need to bolt the TB to the turbo anymore. BTW, we just took my dad's stage II GN out today and I paid special attention to the spool of the T-76. I believe it's a single BB, not sure but I know it's a BB turbo. It spooled almost like a stocker but the motor has way more cubes, compression, and airflow than a stocker, not to mention a 4,500 stall convertor.
Another thing I remember is when my dad had his stockblock car with a T-62 on radials from a good 50 mph roll it would screech all the way through third gear until it hit fourth at 110mph. Anymore power is uselss on regular tires. I guess what I'm trying to say is a moderate sized turbo will make more power than a set of street tires can take at any sane speed.