5/16 with a bus box and the low comp motor should be cheaper and with more HP, bypasses and PS should be faster and easier on the body. But very few actually are these days.
Plus they historically seem to go turtle a lot more and the bodies are costly to deal with unless you own a body shop and they are a pain to prep around...
I still can't believe no one has scooped up Steve's car, it's a rocket in the right hands!