I have a 1947 pickup (3100) with a 235 engine and the original oil bath air cleaner. The oil is messy and I want to replace it with a paper filter that will fit in the area where the oil is housed inside the air cleaner. I know there is probably not a perfect fit paper filter.....but does anyone know of one that would be close to the needed size and work. I don't want to replace the oil bath air cleaner because I want it to look original. Thanks!