my 20GTX STS Kamak is making 360/380 on a mustang dyno spooling around 4100-rpm. I prior had the HTA68 spooling around 3700-rpm nd made like 335/340. MY 20G does not seem to be working as well. This is all at 23 psi target w/1:1 HSF-3 aquamist full build 6-spd swap etc. on my11 WRX. Is something a miss??