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I think the fact that it says right on the website "Will not clear stock Corvette hood" should be your first clue. You'll also have issues mating a square bore intake with a spread bore Qjet.
The spread bore version for a Q-jet is this one. http://www.summitracing.com/parts/EDL-7104/
Several people on CF are running the Performer RPM intakes under stock hoods, but you will need to use a drop base air filter.