on my 92ve I put an ASP pulley on and new belts. a few weeks later I notice this kind of soft low chirpin sound coming from where the VTC are. was too dark to get a closer look at where it can be coming from. Im either thinking, VTC chirp before they start to go bad(mine are good now) or since the new belts are now broke in, they just need to be re-tightened?(checking tomorrow if I have time). anyone know of anything that could cause this? I can hear it with the car at idle and it gets louder as my ear gets nearer the vtc area on the back head. or some sort of intake leak on the plenum there or somethin? any help is appreciated