Can you identify which magnus intake mani?

[GSXftw]

Im looking to buy a used magnus intake mani off a 1g. The guy doesnt know which version or anything just that its the race version. Since I see theres been many revisions and theyve gotten better each time, is there a way to tell which version Im looking at? Im a little leery about buying something I know so little about for hundreds of dollars but I also dont want a good deal passing by

EDIT- brightened this up so you can see the stacks

 

[boosted240]

Looks like one of the older versions.

 

[twicks69]

1st version race manifold.

 

[GSXftw]

thank you much