Don't overpay for BD stuff. The stuff might perform just fine, but I think they charge a premium for their stuff.
Go to
www.turbodieselregistry.com It is all dodge cummins all the time. It's a pay to play site if you want to post or look at past archives and such, but its so full of good info and what trouble spots to look for its worth the $35 a year.
Check out
http://www.tstproducts.com/ and look for fuel plates. These guys originated the fuel plates and most others are copies of them.
or go to Piers Diesel Research
http://www.pdrdiesel.com/
Geno's garage for other stuff
http://www.genosgarage.com/departments.asp?dept=2
Be careful with upgrading the fuel plate....too much fuel and you'll cook a stock tranny or stock clutch.
I did a TST #11 plate in the stock position along with AFC springs and what a difference. Way more power, same or better fuel economy and my stock clutch with 202,000 holds just fine. Don't do any fuel mods till you have guages for boost, pyro and tranny temp (if automatic). Last thing you want is to melt down the motor.
I want to do the governor springs next so i can spin it to 3,000 rpm and then maybe I'll slide the fuel plate full forward
Chris