That manifold is NOT for the NA, nor is any of the manifolds they sell.
I talked to them about a dozen different times to finally figure out that they didn't realize that a NA head isn't the same as a TT head. They are selling a Turbonetics single turbo manifold, assuming that it will fit the NA...
I bought an FMAX manifold from MMRUSA.com for $700. If you buy one, ask for Eli and tell him Scott recommended them.