guys, besides the fact that the car idles like shit, when im driving it but just easing into it, it rides fine. but as soon as i give it a little gas, try to kick up the rpms and hit some boost, it starts jerking around and sounding like it misfires a lot. just bogs down making terrible noises like it wants to die or blow up almost. ive been told to change to a colder plug (ngk 3330?), and check the IM for vacuum leaks. Ive checked good and cant find one to cause the idle to jump around like it does. and would spark plugs really cause all that? whats goin on with my car guys?