I agree with Denny W on using normal rod and main bearing clearances on the street.
44,000 miles on my engine.

In fact, I'm not real sure about using overly large clearances at the strip regardless of oil pump or pressure in use.

Doesn't make sense to give the rod a .004 - .006 running start at the bearing.
Kinda similar to swinging a hammer from overhead as compared to a short swing of the wrist.

I note that some - if not all - NASCAR engine builders are running what amounts to stock clearances on their high winding long endurance engines.
If it works there it ought to work fine at the strip.
And . . . as a fwiw, NASCAR tuners will sometimes set the engine oil pressure at 30# so as to gain some HP for a qualifying run.

As far as the high volume over stock question goes, part of that depends on how the engine oil system is set up.

A couple of examples:
Little brother used to run built Olds 455's in his Henry J drag racer.
All the way from 463" overbored to 498" strokers and the bigger motor was 15/1 C/R running on alcohol.
The oil passages to the rockers are restricted so as to dump the majority of the oil into the rods and mains.
I believe some of the oil passages are enlarged as well.
He runs a high volume Milodon oil pump with the relief spring shimmed to about 60# with cold oil - tested on a bench device.

The 462" Buick in my 32 roadster runs roller rockers among other things and Kenne-Bell recommended the high volume pump to keep up with the added flow allowed by the rocker setup.
It helps #8 rod journal as well since this is the one that tends to let go in the late Buicks that are involved in drag racing.

The adjustable relief spring is set to 60# with cold oil and once warm, the Pennzoil 20-50 wt runs 48# pressure on highway trips here in the sometimes warm desert.

Too high a pressure can create problems, I've heard of bearings washing out, but that sounds kinda strange to me.

One big thing to look out for is cold engine oil pressure.
It's easy to hit 100# even with a 60# relief spring setup.
Oil filter cans have been known to blow out under cold oil and high rpm conditions.

Not that you would run your motor that way, just something to be aware of.