A quote from DuramaxHD set up. Two 360s over stock. I actually purchased this kit from him to put in my 72. I also put a link to his thread on here but his is a LB7 though. And if I remember right it didnt take long for him to window the block.
The results:
This is/was a test setup. They are larger then the base triple kit and Trent wanted to see how they would react with the stock charger in the valley. I added a batmo wheel to the mix as I felt it would be worth it considering the application and knew couldn't hurt. All I can say is every time this thing comes up on boost. It flat out rips and is down right scary now. I haven't played with it in any large tunes as I'm very gunshy but on my old twins 'daily driving' tune, its faster then twins on my race tune Anything under a 55mph roll on, the truck is sets the tires on fire. The spool is whats incredible though. It out spools the stock/475 twin application by a long shot. Trent was concerned with it having issues spooling due to the size, but so far with how I have the gate setup, its wicked. I still have some videos to send Trent and play with the gate some more, but will keep this updated and more pics/vids to follow
http://www.duramaxdiesels.com/forum/showthread.php?t=39790