Personally, running a NA car with aftermarket FI, I would opt for a nice electronic boost controller, like the HKS. I am vary wary of not having very fine control of the boost on such a setup.
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Car Sold! Pleasure being a part of the Z community. 
New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)
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