no mine is like a very quiet tapping noise when im idling....when i pull the lude out of the garage, i get out to close the garage door, when i get back to the drivers door i can hear the tappin...gotta listen for it tho...so it could be only at first startup...it might go away after the engine warms up...gotta check...ill prob adjust my valves...but wat bothers me more is the damn whistling...i hate it...any ideas wat it could be??? i did remove the resonator