6.5L
Old Iron Runner
I told you guys at some point I'd get around to getting a better video of the sound with the quick spool valve. This is as good as I can get the sound quality. Hope you can hear it ok. And if you didnt notice, the truck got painted 
http://www.youtube.com/watch?v=zhvFm3UT0wM&feature=youtu.be
http://www.youtube.com/watch?v=zhvFm3UT0wM&feature=youtu.be