im not really sure some poeple say that they get the fluttering sound also at part throttle and some say they get a whistle which i do get also

yes ive been under the hood alot since i put it back in. ive checked all the ic pipes..there fine...i dont know how your bov popped off the pipe with that stupid c-clip...that thing is brutal...vac lines are fine. The screw in the back is as far out as it will go without falling out..... very strange