Ok ive looked at alot of twin setups, and their all pretty pricy, why couldnt you use your stock turbo as the smaller turbo, would this work? Just kinda curious what are your thoughts?

A lot of people use their HX35 as the top turbo. Might want to get it sent out to HTT and let them freshen it up and put a different housing on it maybe. The 35/3B combo is probably they most popular twin setup. Fast spoolup, low egt's, can support 500-550hp.

Only thing is, He has an HY35. You can get an HX35 pretty cheap.

I'm building a few sets for the stock turbo and a B2 for the 04.5 and up trucks. If your interested I'll give you the data I get from it when my truck is up and running (hopefully this weekend).

I am pretty sure that Chris at Relentless Diesel uses the stock turbo in the Arctic Twins setup. His setup seems to make big hp and little heat.

http://www.relentlessdiesel.com/3rdgentwins.htm

Chris's twins are insane.