Tearing down the 414 stroker

They have a piston skirt knurler [old school] it'll fix minor stuff like that.
auto power machine has one still.

as for roller, don't waste $900+ for only an average 10 hp over a similar spec'd fast rate [not hughes]
and hell..if you do go roller, skip the weak suck hyd roller and go solid roller.jmo

check with EngleRacingCams or Jonescams,btw have head flow #'s ready when calling jones cams