Eddy rpm heads with arp studs question
You want enough oil to lubricate the rocker and cool the springs. A decent flow is required, but not Niagara Falls type flow. Not a drip, nor a fire hose.
I restrict the oil in the pedestal quite often depending on the build. If you have a grooved magnum cam in an LA normally uses a cross drilled cam, it can be quite the issue on some builds.