I found that the drivers side GTO cover was poorly positioned. By carefully cutting the mounting bosses and using some epoxy to re-attach them, the positioning can be made much better.
As of now, it also looks like I either need to trim for the brake booster or go to a smaller one, because there is contact there.
To be honest I am really leaning towards the Camaro cover so I'm hesitant to trim either one 'till I decide for sure.