Dang thats gotta be a big wing nut

Ok, i am piecing together a 318 2bbl intake setup for my kids car. I got a metal air cleaner stud on the spring steel wire loop for the 2bbl carb out of a box of parts in the trunk. This stud on this thing is Yuuuuge. I think they toned it down a bit in the 80s, but i think this is correct for a 69, or is it?. What size is the damn wing nut for this?? I dont think i ever have seen an air cleaner stud this size before.

Matt

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