So I have procured everything mentioned above, including the LS6 springs, and Cloyes 3 way single row true roller timing set. Have not pulled trigger on a TC, as I'm still not sure whether to go OEM or AM. Also, have not moved on the ramjet intake; this looks like another upgrade down the road likely. Have not installed anything yet, but I've got the motor back out of the truck and on the stand. Maybe I can get the cam installed this weekend.