If you're looking for the best engine builder for street small blocks, check out
www.fcrperformance.com . Terry Fritsch has been building engines of all makes (specifically Chevy and Olds) for over 40 years, and is the NHRA top fuel champion from a number of years back. The only drawback in your case is that he is in Omaha, NE. Kind of a hike, but if you're wanting a powerful street/strip motor that will run for hundreds of thousands of miles, talk to him.