Correct PSI for rad cap and overflow

Hi Guys,

Just wondering if I'm running correct rad cap with 7 PSI? Seems low.
Also should I consider adding an overflow bag/container.

If my temp gauge is correct I run at about 165 when in light traffic and about 190 in heavy stop and go traffic. This is lately with the 30C ish temps.
Do not know what stat is in it.