2 Piece LS Valve Cover Question
 

Looking to dress up my LS3 in my 1969 Camaro and step one is to hide the coils on the stock valve covers. Has anyone used or familiar with the 2 piece covers offered by Holley? My one concern is that they might create an oven environment and not allow the coils to stay cool. On the other hand I might could see how they would shield the coils from the heat. Thoughts would be appreciated. The below are what I am referring to:

https://www.holley.com/products/acce.../parts/241-177