someone help me diagnose this noise.... lifter tap? worse?

blownnotcher

MACA Resident MMA Fighter
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so i was driving the car and noticed a slight tap sound i could barely hear over the sound of the blower on my car, so i pulled it in the garage and unhooked the blower belt and started it to see if i could pin point it, sounds like it is coming from the drivers side valve cover, but before i take the valve cover off, since its such a pain, if i can get a opinion of what the issue could be, maybe i can save un needed work, i know these cars have alot of issues with lash adjusters, valve guides ect, this is the first issue i ever personally experienced with it. below is my engine setup, im hoping its only lash adjusters but feel free to tell me what you think it could be

03 cobra bottom end, roughly 35k miles
03 mach 1 heads cams followers lash adjusters (roughly 100k on them)
mach 1 intake
procharger p1sc

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