had your valves adjusted yet? supposed to be done at 150K
I cracked my flex plate on my 03 and it made the same noise you're hearing you'd only hear it at very light throttle, but as soon as it revved up it goes away probably not your problem but I figured I'd throw it out there anyway.
Have you tried to change your edge level to see if that changes/alters the sound?
reclocking the CP3 gear has been known to get rid of a rattle that emanates from the drivers side of the timing cover.
I cracked my flex plate on my 03 and it made the same noise you're hearing you'd only hear it at very light throttle, but as soon as it revved up it goes away probably not your problem but I figured I'd throw it out there anyway.
Have you tried to change your edge level to see if that changes/alters the sound?
reclocking the CP3 gear has been known to get rid of a rattle that emanates from the drivers side of the timing cover.