Have issue with my auto (LSA powered GTS), had some mods done to engine - higher boost (9.55 crank pulley - otr -1"/78 headers hi flow Cats, 60lb injectors)
Concern I have is with my new mods, I find that when cruising on motorway in 6th gear around 1500rpm and want to accelerate with minimal throttle it feels like the car is bogging down or lugging (similar to when you are driving a manual and are going like 30 MPH and are in 6th gear and try to accelerate).
Im getting into boost (kpa increases) once at around 2000rpm she clears and pulls good
Car was tuned but trans tune not touched. (identical from what can see to CTS-v stock tune)
Im at 528rwhp 918nm torque

ECM torque model has been adjusted by tuner

Help / suggestions please

I have only just got EFI live V2 so trying to learn logging etc.