Modern turbo design philosophy is high boost at low RPM ... which creates high torque

Turbo for high RPMs is so 1970s

these turbos must be very small high efficiency
to get them to flow at such low rpm from poor
torque characteristics of multivalve heads.

It is common knowledge with head porters and
tuners 8v heads deep swirl are more capable for
torque than 16v tumble design even with vtec.

I wonder what a stock A13 small bore engine
using the same smaller turbos and hardware
from one of these late engines. Eg more torque
and better curve up to 5k rpm than modern 16v.