Installed a boost gauge into my car. Works sweet, looks nice. But it dawned on me that its fairly useless as i dont really know what a normal reading is. It boost an hold steady at 17psi which i was tuned for, that much i know. But when im cruiseing it sits at -26inhg and when im stopped and ideling it sits at -22inhg. Are these typical values for a healthy wrx? Its a 2.5L btw. Reason i ask is i am experiencing random rough idle and every now and then, its very rare the car will hunt once whilst idleing. Also whilst the car is ideling it will burp randomly, but not very often.

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