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[ERA Chas]

Both Clayton and Bill E's advice echoes what I wrote pages ago. You don't have any compelling need for either type of oil enhancement.
And I highly regard Brent and his advice, I just don't think he's installed any of these in an ERA.
I gave you specific reasons why it's just not an elegant or wise solution for an ERA. And creates further problems for routine maintenance.
I bought an Accusump with the same ideas as you cherish. After plotting the installation with the pieces in hand (not just the instruction sheet) , I decided against it. And a talk with my machinist (a hardcore racer) taught me what Jerry is telling you.
Trying to save you $400 on stuff that will eventually sit on your shelf. This is 27 years with the same car advice. And the same 550HP 427 still going strong after 2 decades.
You're NOT going to trash your $20K engine.
You'd be better advised to learn how to pull your distributor and prime the way I and several others have told you. As Jerry states-that's of limited value as well.
You're making this a lot harder than it is.