Good info Andy, this makes for an interesting comparison to the Wet sump Flat Tappet Chapman (Engine Masters) 470 that Steve Dulcich did back in 2004, Nearly Identical power!

http://www.hotrod.com/articles/mopp-0405-stage-vi-manifold-casting/

Wonder how the Chapmans would have worked with either the Dry or VP, your Wilson manifold and solid roller? Probably enough to break the block!