A 3800 would have to rev to about 8k+ to get one of those turbo'* from vacuum to boost.
I had a couple video'* of that truck doing some outrageous burnout'*.
With a 0-60 of 5.5 seconds, I wonder what it would do in the 1/4? 12.5 @ 108? Lower trap speed with all that air it'* pushing.