Thanks for the insight.
I understand the intake manifold difference but anticipate I would change intake regardless so the only question is which version I would obtain.
I have submitted a tech request to Comp Cams and hope to get some insight regarding the cam selection from them.
I will have my machine shop check out/refurbish my existing heads and head down that path. Worst case scenario is that down the road I need to change heads at the added cost of gaskets and the different intake manifold.