ZL1Dad may be onto something..
https://www.camaro5.com/forums/showp...postcount=1663
Verify first...
Also, I didn’t see where you uploaded a tune for the changes — including the headers. Did you upload a tune for your upgrades?
Best DIY for cam install:
https://www.camaro5.com/forums/showthread.php?t=125123
Verify install with this guide...
-Don