You might want to rethink the cummins turbo. Larger turbos take a lot more time to spool up. The stock turbo might be fine if you block the wastegate and add a guage.(might not want to take it over 25 psi which a stocker will likely produce)
Just a thought.

If you want to get a lil goofy, I'm in the process of working out some #'s to set up a twin turbo outfit on mine.

A day late, A dollar short, and A half a mile behind...

pass me that crescent hammer...