New roller cam...
I have a friend in Canada that just had a new Comp Cam Hydraulic flat Tappet cam go South and trashed the engine.
Bad lifters are not just a Comp Cams issue, but an industry wide problem. I went roller on all my engines over 10-years ago.
I have a Comp Cams XR274R full roller 236/242 @ .050", .564"/ .570" lift in my 499" and love that cam.
This is in my opinion a very good street cam.
DODGE COMP Cams 23-700-9 COMP Cams Xtreme Energy Camshafts | Summit Racing
Tom