Lifter slow to pump..

360 LA , Smog 360 heads, 273 rockers with custom pushrods.

55 miles plus 25 min of cam break break in. I’ve got Johnson hyd lifters. 130 on the seat around 325 open. Broke it in with Brad Penn. 25 min and dumped it. New Brad penn 15/40 and new Mopar filter. Thought I heard a little touch of lifter noise at the gas station after 30 min of driving. Not bad but it wasn’t as quiet as it was when I started. Anyway, drove another 20 Miles or so and put it away for the day. Today went over to crank it to see if I fixed a really tiny oil leak around the oil filter adapter. Started it up today and had a hard lifter tick only on one lifter. Let it run at 1500 rpms or so and after 1 min it was ticking pretty bad.
I pulled the valve cover and marked every push rod. Started it up and they all rotated. Maybe I havent wiped a cam but that’s my fear. I adjusted a little preload into that rocker. I have 273 rockers. I have great oil flow up in the rockers. I started it up and it was the same. Put the valve cover back on and it was still a pretty solid tick out of that one rocker. I let it fast idle for a minute and it all but went away. Just a faint little tick at idle. It’s not as quiet as the others but it for sure settled down and 90% of the noise went away. What’s going on here ? This is absolutely the last performance engine I do in hyd Flat tappet. I can’t handle the aggravation or anxiety of the Infomous cam wipe. Thanks.