Thanks for hooking me back up with UDHarold for my roller cam. It should be installed sometime this week or next. I am anxious to see how this runs in my BBC in my light A-bone. Also the egnima of which heads were originally installed on the brand NEW LS6 short block will be solved. Hopefully my current unknown heads will be the RIGHT ones. Don't worry I am not going to be out hunting Chevelles or Camaros...I am just using the BBC in the A-bone to help dry it off quickly after I wash it