This might be a contributing factor!!

Secondaries won't even move. This is probably what happens when you don't buy a marine carb...?

Fresh water boat only

@PatconThat resembles the 4 barrel Carter carb we recently removed from a friend's 55 Packard Patrician. It sat under a shelter for ten years, air filter off, and the carb was filled with nut shells and squirrel pee. We got the primary throttle shaft unstuck but no luck on the secondary shaft. A replacement carb was unobtainium. He sent it to a carb. rebuild shop in Cal and got it back in about 5 weeks, cost was less than $400.00, and the carb looks and runs like new. I don't remember the shop name but if this sounds like an option I can get it for you. They were very informative over the phone.

https://www.holley.com/products/fuel_systems/carburetor_components/rebuild_kits/

Thanks, guys

We have a local carb shop. I spoke to them today. He said he could do it next week. We'll see what he says when he actually sees it. I have the original carb too. I think I will have him check it out too, as a spare

Well THERE'S your problem!!