Dead Cylinder?

Happy Thanksgiving guys! No its not the cam but lifters two are collapsed & 1 stuck,w/broken valve spring. In process of new cam/lifters, I'll keep you updated. I really appreciate all the replies! Any thoughts about oil in our older Mopars?
Have a great weekend!

I run Valvoline Racing oil 20w50 (the bottle has to say "For race use only" or something like that) and a bottle of ZDDPLUS

http://www.yearone.com/serverfiles/fbshopmain2.asp?input=zinc+oil+additive&SM=1&SC=

It is a costly frickn oil change believe me but we want the best for our motors. Not saying that is the best but I don't know everything. lol