Gain or Loss?

[redeclipse7782]

I found this link helpful, although it doesnt show one superior intake manifold, some have better gains then others at different RPMS. It appears the Venom intake manifold made the most hp though, it also looks like the magnus manifold is worse then stock. I wonder if this was a bone stock 1g intake manifold or if it was bored out the same with the head, and if there were cams installed. I wish the chart included more info.
http://www.dsmsupport.com/flowchart.html