I have lots of street miles on bronze gears. I have worn some out but never destroyed one. I always try to run as thin of an oil as I can and still have good idle oil pressure and I know that helps keep the load off of the gear. My current motor will hot idle at 25-30PSI on 5W30 and runs down the road at 60PSI.
I think the gear in my car has 2-3 drag weeks on it combined with any other street driving I do. I haven't inspected it since 2019 but will probably do so before drag week this year.
I forgot to add I drilled as small as a hole as I possible could in the galley plug so it squirts directly onto the gear. I can't remember the size but it was as small of a bit as I could use without fear of breaking it in with my rock steady precision hand drill mill/rickety vice setup.
I do not know if that mod is possible on a big block.
