Alright since none of you answered my earlier post, I made a sound clip of the noise its making. The people at Westbay Auto Parts think that it could be that  a vacuum hose could be leaking or that the intake/exhaust gasket could be leaking??? well here is the vid. 
  
http://s40.photobucket.com/albums/e220/Ghost_Recon88/?action=view¤t=280zxfinal.flv 
  
alright i hope that helps.  
  
some ideas on what is wrong would be nice.