Hey all. Ok, so first I'm definitely not a master at lashing valves but I thought I had a handle on it. But have some concerns as this could be multiple things. Had a lifter ticking sound and it had been discovered that the rockers were just contacting the valve covers. So I ground on the inside of the covers to clearance, cleaned and reinstalled. Lifters seemed ok at the time. Maybe a touch loose. Adjusted a little. This is a new engine, new rockers, cam and hyd flat tappet lifters that came as a set from Comp Cams. Engine broke in with high zddp oil for about 25 minutes total. Did have to stop and restart but the car was never left at idle. Prior to break in we primed the oil pump. Nothing coming out of right bank. One of the guys there noticed the lifters were easy to push down on and thought collapsed lifters but I pointed out they had no oil in them yet. We found out that without a high speed drill we likely wouldnt see oil on that side on a Chevy and we are good. Then we did break in. So after clearancing covers and re-lash and still ticking I took the covers back off to clearance more and found a pushrod laying on an angle and just coming up through the opening in the head on cylinder #4. The end came out of the lifter. It's not bent or broken. I was able to see the lifter coming up and down so seems the cam is ok (or at least not all the way gone). Not bent or broke. Reinstalled. Found one other lifter needed a good amount of adjustment and a couple needed a little adjustment. Relash again. Then I'm worried am I now adjusting too much to compensate. Start car, still lifter tick. Read into it and hear flat tappet and certain brand lifter or aggressive cams can sometimes click like this and sound like loose rockers. So then how do you troubleshoot to figure out if this is normal ticking, loose rockets, bad lifter or other. Kinda lost at this point now and stressing about this. I'm still using high zddp oil. Is ticking normal? Not a huge cam but decent size for a flat tappet. Its .490/.490 lift with 1.5 rockers but using 1.55 so closer to .506/.506 lift , 230/236 dur at .050. Thanks guys for any help. Stressing about it here.