When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Welcome to FTE. You have come to the right place for info.
I suggest you ask this question down in the 7.3L diesel forum. They can fix you right up.
But I do know that CCV means crankcase ventilation, and re-routing it out of the intake is a popular modification. Not being a 7.3 guy myself, I don't have a clue on the foil delete thing.
the foil delte is on the intercooler pipes (going to the turbo). Mostly cosmetic. There's a stick on insulating foil on them. It takes some work to get the glue off .. but once off you can then buff them shiny, or paint to the color of your choice