Need some help on an air cleaner question

[toney]

I'm hoping someone can help me on this. I have a 63 half ton with the 230 6 cylinder engine. My air cleaner opening is a little bit bigger than the width of my 1 bbl carb so that it doesn't fit snug overtop the carburetor. Can someone tell me if there's supposed to be an adapter or spacer that fits on top of the carb so that it can fit snug? It would be even better if you can send me a picture of what the top of the carburetor should look like. Thanks in advance, Tony