Sorry about that,
= Knock Retard (detonation)
= Fenderwell Intake, usually a intake that sits inside the fender area and pulls in cooler air than a CAI
CAI = Cold Air Intake, usually a open cone type system (as in just sucks in air from engine bay) usually cheaper but with not as good as a performance gain.
It is hard to port your own S/C unless you have previous knowledge and/or the right tools. I would highly recommend getting it ported by either INTENSE
-racing.com, wbodystore.com, or zzperformance.com all do awesome work.