This kit is brand new. The reason of sale is because I've decided to go with another way with my project.
Here is the link to Texas speed.

http://texas-speed.com/p-474-precision-race-components-650-double-spring-kit.aspx

Will include extra seals for the gen 3 engines. I don't know if they fit the 07 and up. The price will be 250.

I also have the valve seal installer tool I got from jegs which will make it a whole lot easier to install. I have a comp cams version for 25. And the jegs version for 15. All brand new.
Hit me up and lets make a deal