Cowl Plenum Information

[napa68]

I've been curious about the differences in cowl plenum air cleaners and how they may change between body platforms.

For instance, on Doug's 67 Yenko, is there a difference from a small block to a big block? A bodies to fullsize. Etc....

I've been looking around on the web, and cannot say I found a good source of info.

Sorry if this is kind of a remedial question. I'd just like to know more.

In advance, thanks!
Tim