RX7 FD 1995 RHD

if you were running non sequential, and only made 2 PSI max under full load, and the car was bogging at around 3000 rpm trying to build boost ( feels like my cars choking whenever i hit 3000 rpm) what would be your first thing you would check? Sometimes, rarely, the car will allow me to acelerate no problem up to redline but most of the time the car is suffering very bad boost surge/ severe bogging. i am using a 3 port mac solenoid to control boost and its really frustrating not having the car at its full power any advice is gratefully appreciated and please dont be rude

i also did a test of only pulling vaccum from my actuator and got around 6 psi but still not 10 or 11. so i just want some advice of what to check, i also have a high flow catylitic converter and full megaphone exhaust. The car sat for a few years a bit ago, could this be a problem with m fuel system? has anyone else had this issue and solved it?

 

I would get myself a copy of the vaccum diagram and check each line and check valve for splits also while im doing that checking the condition of charge pipes etc