How fast are big block Duster's.

So with 525 hp, 552 tq on the dyno, with 3500 stall and 3.73 gears, is it possible to be into the 11,s with this car?

yes

I make 314/450 at the wheels and in full street trim go 11.70's. 3500 stall, 727, only difference is 4.56 gears. But I'm over revving through the traps. SO I should actually have like a 4.10 or 4.30. I'd have to do the math.