I disagree.
It allowed me to send extra oil to:
1) my top-end to cool the HD springs, which were required to keep the valves running on the hi-lift lobes for the past 100,000 miles. and
2) to keep the aluminum rocker arms from galling. and
3) the roller tips from exploding. and
4) the Timing chain to prevent it from prematurely wearing out
5) and I have a clutch, so extra oil to the Thrust bearing,
6) oh and I sent some over the sides of the heads to run into the general vicinity of the flat-tappet cam lobes. That 276/286/110 cam is over 20 years old now , and it was originally set up with a half-turn of preload. A couple of lifters are ticking now, but I'm in no hurry to pop the covers ...... cuz I know the valvegear is well-oiled.
7) not to forget the oiling mods required to survive 7200rpm. and
8) Engine has not been apart since 2004.
Can I credit the HV pump for all that?
IDK, but