Hey guys, looking for some help with my A/C system.

My car has a LS4 V8 and the A/C has always given me trouble.

The A/C system was all replaced 2 years ago.
-New lines from DPI (Eaton EZ clip)
-New 134a condenser from DMC
-New evaporator, dryer, and orifice tube from Special T

I was also using the stock LS4 A/C compressor, which gave me sub-par cooling due to the fact it is a variable displacement unit, which was unknown to me when I originally installed it.
I switched it out to a Sanden sd7h15 compressor, the same that is used as a replacement in the stock delorean. The only difference for my application is it has a 7-rib pulley and a different back plate.
Link to the new compressor: https://www.summitracing.com/int/par...-vma/overview/
My thinking was that I now have an all stock system, so it should cool as well as stock.

However after charging it up yesterday the A/C is worse. It is pretty much non existent in terms of temperature.
The compressor clutch still engages, so the wiring is not an issue.

Any ideas?