Hydraulic lifters

:popcorn: Hydaulic lifters are very troublesome these days. I dont have the answer but interested in discussion. Not really related but my 500 engine when new sounded like a bunch of marbles were in it at idle. adjusted lifters everywhich way, 1/4 turn up to 3/4 turn preload. Lack of money I bought Echlin lifters and installed new internal retaining rings. Still the same. As it turns out the HL cam is noisey. unless I go solid I have to live with it. I bought a new solid cam and lifters but the car runs soo good I haven't changed it. Had good luck with lifters but not recomending them.