In o/d anything below 10 psi it surges, surges between shifts(yes in an automatic), slow spooling. It's not a good towing setup, but it is one wicked drag setup. I daily drive my truck and can deal with it...the average person would be miserable.
It also gets hot with the amount of fuel i'm pushing. But that's with a stock cam and intercooler.
If you want big power and still be able to tow, go twins.
Cumnspwr
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2001 2500 4x4 GB Full Billet Auto
HTT Prostreet 66/14, 7X.012's, Some headwork, FMS, Smarty.