9343 by MR GASKET CO - Air Cleaner Spacer, 2 in., for 2 and 4-Barrel Carburetors with 5-1/8 in. Neck, for most Holley/Carter/Edelbrock/Quadrajet 4-Barrel Carbs
Chevy/GMC Quadrajet AIR CLEANER SPACER 2" tall G10 G20 van OEM | eBay
Rochester 2G 2-Jet Carburetor Air Cleaner Adapter Plate - Walmart.com
Amazon.com: Mr. Gasket Air Cleaner Spacer/Adapter Kit, Black : Automotive