i have a 84 where is the best place and price to find it i need all new carpet

I got mine from Corvette America. I'm quite pleased with it, it was pre-formed and cut, and fit right in.
Zip Products, Mid America, Ecklers,plus many others also carry OEM pattern replacements. Everyone of these places has web sites you can search. Here's a few links;
www.corvetteamerica.com
www.ecklers.com