[Jerry Clayton]

Rarly 1958 fe engines were solid lifter engines and at .027 lash were pretty noisy---engines with hydraulic lifters had a spash of orange paint on the timing cover---engines also had adjustable rockers even after they went to hudraulics---the rocker tips if worn ( common) will add the amount of wear to the clearance set with a feeler guage and will be noisier---course with todays oils your cam could be worn out