i just installed my mbc and boost gauge at the same time and this is how i installed my mbc and tightened it and boost was still 12psi losened it and it was still 12 psi this is how i connected it and also a pic of the kind of mbc i have



any idea of what went wrong? and also can you tell me if i installed my boost gauge right?
this is how i connected it too

 

Looks fine for both, but the screw lengh in that MBC doesn't look like it's very long (unlike the one in the diagram) and may not be making any difference. Also, zip-tie every vacuum line every where once you get the MBC working, or you'll have a "boost leak" and use water, or hair spray when connecting intercooler pipes with new clamps/connectors.