I dont think there is a ready made powerFC for the JZA-70. Im told that the best the can do is a more expensive "race" version that has to be specially programmed in Japan.
The Nissan guys who have powerFC seem to also need a separate boost controller (i.e. Aexi AVC-R) as it is easier to adjust than the one in the powerFC, even though you can hook up a solenoid