What is coyote duster

actually it started on the 69 Road Runner with the fresh air package (air grabber hood) it was a large oval air cleaner single 4-bbl, as the 6 pack had a different sticker that said well, six pack. the air cleaner fit inside the fresh air hood package on the Runner in 69 was cable operated, later became vac operated. Now the road runner could vacuum up the coyote dust, hence the "coyote duster".
Another variation of the same system under different name. 69 Dodge R/T had the Ramcharger Kit


So I'm just curious. I see this sticker on some of the air cleaners. I have done some reading on it, but as far as I can come up with, is this is the name of the cold air induction for a Six PAC vehicle.

Have any info on them? I'm curious about them.
Thx