Oil pressure vs lifter pump up

hi, the 351 C ford needs that kind of pressure. mopars don't. 60 # of pressure will hold the lifters. one item to consider is, run zero preload, this way, it's like having a solid lifter in motor, this is an old stocker trick from way back. in the old 283/ 327 chevs, was worth bout 500 or more RPM, and no valve floting.