I just finished up with mine. I was surprised not to find much stuff under the cowl, so I followed things downstream and found that about 1/4 of my AC coil was blocked off by leaves and junk, so I cleaned it out the best I could with out too much major assembly and reassembled, with what seems to be more airflow now.
It seems that a screen or something could be cut out and fit into the hole where the air goes from the cowl area into the blower. When I fix the wiper problem (see below) I'll probably jam something in there to keep the little leaves out.
Unfortunately, I managed to break the balljoint type thing that connects the wiper transmission to the wiper arms, so now I have no wipers. Good thing it seldom rains here
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'93 Anniversary Edition SVX 122k - 3.7 FD 5MT Swap, ECUtune 1a1, Bontrager RSB, Mad Restoration underway!
'20 Honda Ridgeline
Custom Oil Caps, Battery Bars, Phenolic Spacers for sale here:
http://www.x35design.com