If you boost it you can use a regular old BB and be in the 10's, no need for a new Gen Hemi at all. I'm running 11.30's uncapped w/ craptacular 60 foots and 11.40's thru the mufflers w/ a stock stroke 440. I drove it 52 miles (each way) to the track and back w/o any issues, except for these loudash Summit mufflers. With the six-pack, 727 and 3.91's I managed 12.5mpg (or better) at 60mph. A 4 speed w/ OD would have done much better. I guess it depends on your wallet and fabrication skills. With the aftermarket heads available today and custom cams low/mid-11's is the new 12.0