Most stock unbushed lifter bore blocks leak a ton of oil around the lifters flooding the cam lobes, maybe you should check yours to see how much yours leak now scope twocents
The reason that some lifter company started adding the direct lube holes on the bottom were for BB Chevy, not for Mopar motors shruggy scope

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)