So I modified my S&H air cleaner by adding a perforated metal top and higher flow foam air cleaner material:
But the combination of the S&H perforated sides and the perforated metal top was still only at 36 to 39% open area.
And I wasn't sure I liked the look of it.
So I got some SS wire welded mesh cloth with 1/4" holes from McMaster Carr which has a 76% open area and fabbed some new sides and tops for the S&H replacement air cleaner:
And I think I like the look a lot better.
Now to see tomorrow if it runs better. LOL
Cheers
Greg