Solid lifter information wanted

and for the drilled for pressure lube to the rollers
Except for very early when we also used the crossover I never used the tube, but then bushings were DIY
I disagree with YR
when we had to run stock rockers the oil through the pushrods seemed to help
perhaps due to the cooling
lifter bores worn on 50 year old blocks? they were not perfect when new
Magnums seem to be better