Bad boost reading. Boost leak?

[desertKAdrifter]

I finally installed a boost gauge on my ka-t setup which is supposed to be on a 8lb spring. My car has been running a little rich lately so i installed a boost gauge to see if i was getting full boost. After i installed it i turned on the car and it read -23psi at idle. Then i took it for a spin but i could never get the reading to go beyond -10, in other words according to the gauge im getting no boost at all. I've installed the vacuum line on a vacuum line on the intake mani and i also tried the vacuum line that goes to the bov, and i get the same results. By the way the boost gauge is an autometer my friend had laying in his closet. So do i have a boost leak or a bad gauge?

[s13silvia123]

boost leak or vacuum leak, check all hoses and all associated with boost, then install that on someone's boost motor to see if it works or not