Are new parts crap?

I know what you mean. I bought a set of Probe Industries rocker shaft/adjustable rocker arm assemblies a while back. They would always have to be re-adjusted. I took them off one day and found the adjusters worn down and a lack of oil. It appeared that the oiling hole going to the adjuster wasn't big enough. I called them about it and they said they didn't have any complaints. I went ahead and bought the Crane rocker shaft/adjustable rocker arm assembly and the oil hole for the adjuster was at least twice the size of the Probe ones. No problems with the Crane setup. Pulled it off after a 10 mile drive and plenty of oil.