451/452 Stroker Builds?

Who has built one of these engines from the 400 block? I wanna build one for good gobs of street power, so lots a torque and a good chunk of horsepower.
Anybody got any results from any builds of this engine? Ive seen the kit from 440Source, has anyone used this?
Here is a good read about the differances in some of the blocks....

http://www.440source.com/blockinfo.htm