11-05-2015, 08:20 AM
This one was close on size too. The manifold had a 4 3/8 dia recess for the filter and the air cleaner bore was 4 1/2. Made an aluminum spool to adapt and raise it an inch to clear. Covering the open filter really made a difference, guess you could hear the reed valves opening and closing before.
Free advice is worth exactly what you payed for it.
Greg
Greg