01577 NOS dry system. Kit is 4 weeks old, and the bottle with original fill is still half full. The kit works perfect, bottle is flawless (no scratches). Comes with 75, 85, and 100 jets. I am including the NOS bottle heater and NGK 6 spark plugs with 400 miles on them. I paid close to 800 dollars for everything new, and I'm asking $450.00 and I will pay shipping. If bottle is shipped I will have to empty remaining gas. This kit works on f-bodies, C5's, and C6's, and is a great kit because it will work with the stock tune.