Yes, I suspect it is too. These old intakes do have a significant port to port spread. Even though this one has been heavily massaged internally by Hughes and each ports flows a lot more and than they did stock, it still suffers from significant variations from port to port. They are closer to each other in terms of flow now, but there is still marked spread on several ports.
I would like to send a fresh intake to Wilson Manifolds and have them give it their max effort, but I've been to lazy to pull my current intake, bolt on the new one to get the head ports marked onto it and then replace the current one so the car runs while they do it.
