Lifter Problem

If i knew how to post videos on here i would. I took video of how it sounds. After i put new heads and intake on after about 75 miles my oil brand new melling oil pump decided to lock up. I was about 3 miles from home when i noticed my oil pressure gauge had spiked to 100 psi. I shut it down and heard a ting noise when i went to fired it back up i heard a bunch of tinging in the distributor. Come to find out my oil pump drive shaft twisted and stripped out. So i change the pump and shaft. Got oil back up to the rockers started it and the lifters were really loud i drove it around the block and it got quiter when i got back after about ten minutes they got loud again.. do you think my lifters a collapsed and do you tgink the cam is junk now?

Update i pulled off the valve covers started it up and oil was coming threw the pushrods onto the rockers like it soy. Started nice and quiet then after about two minutes it started tapping one one rocker. At this point oil wasn't shooting out of the the push rods. That another one stayed tapping then another and another. I wondering if maybe when i put the new pump in if i didn't get the pickup gasket in... it was really hard to see if i had it for sure. Think this is a possibility?