manifold gauge readings

2006 sonata 3.3 sometimes my air is at near 40 degrees and it goes to 60 degress sometimes i hooked up a gauge set and with air on max and blower on max and temp at 77 degrees my low side read about 28psi and high side around 175psi what should my readings say for my hyundia

thanks

Rob


www.rfpoil.com

At + 80 F, 30-40 PSI on low side and 190-220 PSI high side. I like to see at least +32F on low side.