273 rocker arm adjustment

im pretty sure these are hydraulic lifters, which doesnt really make sense, why would the PO put this big cam in here and the adjustable rocker arms out of 273 and then keep the hydraulic lifters. anyway, what is the best way to adjust these now?, i am seeing some differences between them. i dont believe that there is anything wrong with the cam. these are very small metal flakes. i found some wear in the rocker shafts and rockers, which i think has to do with this adjustment and combination of parts

https://wmwinklercompany.box.com/s/3xssj1kuk9ppx5syerttdca0wq29yid6

here is the video clip of the movement i am getting, which is why i think this is a hydraulic lifter

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