need help finding noise...

[-=BoYo=-]

my z is runnin sick after everythin i done to it i cant complain but theres one more thing that is anoyin me.. i have a squllin sound coming from the front of my engine you can hear it really well when you put ur ear to the wheel well...if you rev it you hear it as its comin down from a high rpm im thinkin its a bearing but i dk which one.. its not the timing belt tensoner or the belts or alternator.. they was replaced.. what should i do..

[evildky]

could be an bearing on the ac compressor?

[-=BoYo=-]

k ill check it out thanksill post back

[-=BoYo=-]

just was a tiny exhaust lleak through a gasket between h pipes and test pipes very werid sounding one... thanks ne way i checked the ac its fine./..

[-=BoYo=-]

ite i changed the gaskets between my test pipes and h pipe and the noise is still there its still coming from the same area. it sounds as if its inside of that plates that covers the drive shaft. but what would make a noise like that from by the drive shaft if the car is not in gear....its only whne u rev it as it comes down.......??????????????????????? plz help ???????????