Im having a problem getting the car past 12psi, but I noticed that 2 of the bolts on the mani were loose. Would that be a cause of the car not being able to make boost? everytime it gets to 12 PSI it drops to 10. Im trying to figure out if its the mani or the loose bolts causing this. My setup is LS/VTEC, Spoolin log and 3" dp, Precision SC34. Thanks for the input.

 

Of course it is causing it, assuming you're talking about exhaust manifold.

The exhaust gas is escaping rather going into the turbo