I went to Hershey past weekend. Saw a 67 that looked like new.It had a strip of weatherstripping across the top of the radiator support.Anyone ever seen this before?I didn't get to look at tag but it was supposed to be an rs/ss.

It is a seal used on A/C cars to increase flow throught the radiator.
Here is a post about it - http://www.camaros.net/forums/showthread.php?t=92065