1967 Dodge Dart 270

I am really trying to document before and after stuff. I really want to get it cleaned up, apart, and check for the things that need replaced. Already doing new gaskets and seals. I am also considering trying to figure out how I can do a citric acid flush of the cooling system. I need to check out the effects on cast iron though. I know with steel and stainless it creates a protective coating that resists rust. It is something we do at work on large scale cooling systems. Will see if it needs new bearings or cam once I get it apart. The engine only had 86k on it. Not too bad for a 54 year old car. We've decided to keep it original for now. May convert it to a Charger/Commando in the future. Who knows?