Vacuum off air cleaner or manifold? Options

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I would’ve not thought that this would get to be a pain in the neck, but there you go. I have a new SVDA Distributor with a vacuum advance but my carburetor set up doesn’t have a vacuum port. Short of pulling the carbs off in drilling them it’s been suggested that I either tap in to the manifold or air cleaner assembly. I’ve seen some suggestion that tapping into the manifold, even though the number of builders have recommended, it’s a bit of a no-no.

Putting a vacuum connection on the air cleaner bottom plate near the venturi opening would be easy and that should give me a vacuum signal, maybe weaker than manifold, but I wanted to ask what you all thought about that approach before trying it.

Thoughts? Comments? Experiences? Dope slaps?

Thanks!