I know every one asks the same question, but I will ask again. I searched all the diesel forums and can't quite find the answer I am looking for.

see sig for details, I am new to the forum, I have been trying to get info from some manufacturers, but i feels its all biased, and some just don't resond. If you have no real world experience do not respond please.

I love the bottom end response of my current set up: 4.10's, smarty, HO, BD 150's. But with the low end power I have, I feel like the top end is weak in comparison. I am holding out on a box, When I feel the urge, I am going with a Edge comp. (hot of course)

OK, I am looking at the II SPS 62, the silver 62, and the bd super B special.

I am not concerned with slow spooling, as the truck is only driven on weekends. I am going to test pulling out late this summer, and will run the track as soon as my ladder bars are built. That is when I will decide on the box or not. I am very happy with the way the truck runs, its is very reliable, but I know the days on my turbo are limited. I am looking at a reliable 500 HP truck.

Let me know what you guys who have ran these turbos think, or if you have any other suggestions let me know. Forum farmers, try to keep your words to your self. thanks.