Obviously a 440 fanatic. You need to read Larry Shepards book also. I will repeat for the reading impaired, 440's are great motors, but there are performance applications (not just resto's) to where this motor fits the bill and makes good power. Cause you have only a 413, does not mean you can't run. You have to pick your fights carefully. Sure 440's rule the upper classes and sub-11 second in doorslammer ET races. That is great too, but for a good street car that is tractable and makes great power to have fun with, I would consider a 413 (cheap to build in the long run, more torque where you need it low midrange), as if I'd consider a 440. To me one is as good as the other, you just have to build it a little differently. Final note, as far as being "special" only the Long-Ram, Cross Ram and Inline Dual Quads 413's are special. There were a limited number of each type built. And that is a true fact.
"Stupidity is Ignorance on Steroids" "Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)