Magnum Head Rocker Arms

I've got PRW rockers (1.65 ratio) with Rhodes lifters on my Magnum headed LA and it's pretty quiet in the valve train. I use 10w-30 VR1 oil as well. I've got another Magnum with stock rockers and some cheap lifters (they're from 2015 when you could actually get ones that wouldn't die in 10 minutes) and it sounds like a sewing machine. I've often thought pushrod length could be causing the issue, but I'd be willing to bet it's just the quality of the lifter. Honestly every Magnum I've ever had has some valve train noise it seems, but not enough for me to ever be concerned with it.