340 issue after camshaft change

You can do that, but it's not advisable with the little crappy wire plunger retainer. The heavy duty snap ring is much more desirable in that instance.
:lol: I never use a cheap lifter. I take it you never over adjusted a hydraulic lifter on a Chevy, yes you can over adjust and the lifter will keep the valves open when running.
Learned that lesson when I was 14 on a 327 in an Impala