Running a retrofit hydraulic roller cam

This is one of my favorites:



There was a thread somewhere that went with this video.
The thing that surprised me the most from that thread was....... they dynoed that motor making that kinda noise!!
If I’d have had that thing on the dyno making that racket(and I think it made around 500hp??)....... it would have been over right then.

I seem to recall they swapped the lifters, and maybe the cam too..... and it ended up being more normal.