I wonder if there was a vacuum (tapped) off the exhaust then dumped into a catch basin (hold the buts, but let teh ash pass? I wonder if it would have caused issues with teh muffler? I tried finding something on the new no luck yet?

Another wild option you could get in some cars was a record turn-table (I did not make that up) I have a picture of it in one of my books.

1960 GMC 305A V-6 Gallery Page
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