12.7 under extreme boost 28-30 lbs I hear a teapot sound. Seems to be coming from air dryer.

Under a hard pull I’ve noticed a sharp exhaust manifold or turbo gasket noise. It is neither. Also under a light pull like leaving red light my purge valve ( I think ) stays open until I let off the fuel. It also does this with the cruise on going down the interstate. Once I stop giving it fuel the dryer will purge and all is fine. Everything is new except dryer. I say I think purge valve because it’s coming from the dryer. The sound of air coming out I’m thinking can not be coming from pop off valve. Pretty sure I know the answer. Buy new dryer. Yea ok 900$. But it’s attached to long tank. What’s in the tank? So on and so forth