like mathew8pt said, its going to take a 800+hp truck to crack low 11's. (i have looked into it a little)
the reason why manulas are slower, is they shift slower, and they loose boost between shifts. the best solution i found (so far) is a procharger/turbo setup. the procharger should help prevent you from loosing boost between shifts. and doing 3ed gear boosted launches should help you too.
then the problem becomes holding it together
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'02 | 2WD | 2500 | NV4500
"Diesels dont run away. Diesels over speed, mechanics run away"