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Actually the deleting of the exhaust gas crossover is what makes the intake an "airgap". Take a look at the pictures on the Edelbrock website and you'll see that is how they define it for the SB intakes. The BB intakes aren't called air gaps by Edelbrock.

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DEFINATELY not called Air Gap when its a Big Block manifold. B or RB version. Simply a Performer RPM, period. Small blocks now they make and sell two versions currently. Performer RPM which looks like a LD340 basically and designed like any run of the mill SB intake as far as being one solid piece. And then the Small Block Performer RPM Air Gap which looks like a Big Block intake simply because the runners are raised up away from the solid bottom of the manifold covering the engine creating an "AIR GAP" between them and the rest of the manifold.


RB Performer RPM 7193



B Performer RPM 7186



Small Block Performer RPM 7176



And last but not least the only one called "Air Gap" in a Mopar intake the Small Block Performer RPM Air Gap
7576



They all have heat crossovers except the 7576 but its called an "Air Gap" because of the raised runners. And like John basically said, all single 4 barrel BB wedge manifolds already have this feature from Ma Mopar. So no sense in Edlebrock trying to attach that moniker to them thus they are simply called Performer RPM's. If you want to lose the heat crossover then block it. They just couldnt give you that option on the Small Block 7576 because of the design of the raised runners.