china airgap intakes on ebay

If you want to get technical, Edelbrock and all the other aftermarket companies stole their ideas straight from the auto makers. There have been several engines straight from the factory with "air gap" style intakes. The big block Mopar is but one example. Lots if other engines used belly pan intake gaskets even before that. The Buick Nailhead and early Hemi are two examples. All the aftermarket did was expound on a good idea. Individuals and companies have been improving on the factory offerings right from the start. It ain't nuthin new.