Strange Ticking During Hard Acceleration
 

Hi all just noticed a strange ticking sound on my 03 v6. you can really hear it only under hard acceleration from the driver side of the motor. you cant hear it during idle unless you are between 2 buildings then you can kinda hear it echo....sounds like it could be under the valve cover on driver side also ont he passanger side you can hear the same noise only not as loud... is this a common noise am i making a big deal over nothing or could it be a valve or something going bad?