67 is bigger on the turbine side. In terms of flow on the compressor it is not.
There is no way in hell you make 150 to 200whp more than me, fyi.
That's a lot...
over 20 psi of boost my 30R hotside combined with only .64 a/r housing is highly restrictive. But I can still make big HP/torque at lower RPM making up for the losses at higher RPM.
There is a 6262 Turbo going in the parts car today. That will wake it up big time and put the trans to bed lol