Recently picked up a 67 K20.. I immediately noticed below the openings of the cowl vent panel was packed with wet soggy leaves...I removed the panel, cleaned, washed, scuffed & painted to top of the cowl...Before I reinstall the vent panel, I want to put a screen to prevent anymore leaf build up...I have an idea of what to do, but was wondering if there was a fabricated aftermarket screen, or any idea's of what someone else did....I'm sure others have been down this road....Thanks