I just built a leak tester and tested my 05 srt-4. I pluged the hose on the intake pipe. I set my compressor to 20psi so souldnt i read 20psi at the boost guage I was getting nothing i upped the pressure on my air compressor to 30psi and was getting 5psi on my boost guage. Am I suposed to have more psi comming from my air compressor? or did I forget to plug another hose? What should be pluged when testing? I am still getting 7-9psi in 1st and 12-14 psi while in 2,3,4 gears. so if i wanted to see that on my boost gage on a test i would have to have like 50-60 psi going in? I must be doing something wrong. please help.