If you have the 2 pound oil bath air cleaner, the lid is separate from the element (3 piece: bottom, element, lid). It's an easy conversion. The more common oil bath air cleaner (techtips), that has the element and lid as one piece, requires surgery.

https://www.stovebolt.com/ubbthreads/ubbthreads.php/ubb/showflat/Number/1325488
Attachments
Filter Options.jpg (75.22 KB, 50 downloads)
2 Lb Air Cleaner.jpg (74.08 KB, 50 downloads)
Modified Car Filter.jpg (29.17 KB, 50 downloads)


"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."