Here is a good site, they build a couple different setups with a stroker kit and dyno all of them. I think the biggest benifit of the stroker motor is not so much the HP gain, more so, it's the torque curve. Check out the Dyno sheets from the build up these guys did. Also, Grumpy, you are the man, I've learned so much from the postings you've done..... Thanks!!!
http://www.hotrod.com/techarticles/383ci_chevy_small_block_build/