With any decent boost, you won't see any noticeable low rpm losses from any big intake. Reducing restrictions at any point along the way will raise power along the way, from barely any to a great deal. Your heads and intake are big restrictions given the 7psi, but of course worse if it was 15psi etc.
The GT40/Explorer lower intake is a main component of all of the Kenne Bell supercharger kits. Few people have had those and also ported the lower, the boost usually satisfies the owners or they look for ways to increase it(bigger unit size etc). But for all of the upgrades they do, heads, exhaust etc, they are stuck with that GT40 lower.
The GT40 lower can be ported to gain a lot, often get to unported aftermarket intakes. But use the bigger intakes, and have that ported, then you reach a different level that the GT40 cannot.
So generally price your upgrades or live with what you have. Your novi system lets you use any intake, I'd go bigger if you need more power. Note tire spin is more of a problem when you make more and more low rpm power on the street.
I like the TFS R lower the best, it's short and the ports are already very large. Those can reach 350cfm ported without much trouble, and the ports are properly straight, out of the box.