1/2 9078 Plated Booster
 

This is the numbered half of a 9078 booster used in the 1968 Camaro and Z/28. I don't know if it was used on Chevelle and Nova. It was replated a long time ago and has been sitting on a shelf. A few marks from being moved around but there is no pitting and it's a nice piece. $80 shipped to lower 48.

https://www.yenko.net/ubbthreads/pics...6-p1020421.jpg
https://www.yenko.net/ubbthreads/pics...7-p1020420.jpg
https://www.yenko.net/ubbthreads/pics...8-p1020419.jpg