No power, yes seems low.
Bad fuel milage, i guess, gets about 12 13ish. figured it was because i have to keep it at least 80% throttle just to keep it moving lol
No waste gate sound, i dont know what a 7.3 waste gate sounds like.
I do know my psi when floored, goes to about 18 and drops to about 10 when it shifts and crrrrrrreeps back up to 16-18 as the rpms go up. also shifts funny some times, rpms go up and down in between some gears, and i noticed that the psi goes up and down too when it does that. i dont know if the boost going up and down is causing the shifting problem (rpms going up and down) or if the shifting problem is causing the boost to go up and down.