The a-bodies were a budget cars so that might explain those not having anything other than basic hood scoops. If you fancy up your low line car too much it may steal away sales from the other more expensive cars as well?

Not sure a shaker would look good on a B-body car? I guess I'd have to see one to make the call.

The 70 RR airgrabber is not a shaker setup, but I think it's better looking.