I’ve seen gear drives get trashed from lack of oil.
Timing chain wear is mostly from not getting enough oil on the timing set.
And this is on not just Chrysler stuff. GM and Ford have the issue too.
There is a big difference between a production car driven by the general public and a race engine. Or even a street/strip deal.
Using the junk the factory used that didn’t work, or works well enough to get past warranty is not what I call race engine preparation.
And I can say that once you start getting in the low 12’s you are entering the territory of performance engine stuff, although I make no distinction between that and a race engine when it comes to simple modifications like drilling a hole.
To convince me otherwise you’d have to tell me how a .040 hole in the oiling system is detrimental to anything.
One could argue the hole does nothing nor does it hurt anything. But full pressure oil on the timing set, regardless of if it’s a timing chain or gear drive.
And I almost forgot. Back in the day we had issues with the fuel pump eccentric wearing abnormally when getting the rpm above 6500 or so.
The hole stopped it.
You could also argue oils are better today but I’d say the hole still has benefits that the crap Chrysler used does not.