Amazon.com: Moroso 66390 AIR CLEANER STUD ADAPTER, ADAPTS 1/4 IN. WINGNUT TO 5/16 IN. CARBURETOR : Automotive
Allows you to use your factory 2F air cleaner with your new Weber Carburetor. Includes aluminum adapter, gasket, hardware bolts and center stud. - Cruiser Corps
5″ Air Cleaner Stud 1/4″-20 with 5/16″ Adapter – Racing Power Company
Spectre Stud Kit Air Cleaner Hold Down
Air Cleaner Stud Adapter 1/4"-20 to 5/16"-18 Thread Holley Edelbrock Carb HotRod | eBay
MOROSO AIR CLEANER STUD ADAPTER - MOR-66390 - Fuel & Air System
Summit Racing SUM-G3002 Summit Racing™ Air Cleaner Stud Adapters | Summit Racing
Air Cleaner Stud, 1/4-20 In Thread, 6 In Long, W/ADAPTER For 5/16" :: Dave Poske's Performance Parts
Amazon.com: JEGS Air Cleaner Stud Adapter | Adapts 1/4 in.-20 Stud to 5/16 in.-18 Carburetor Threads | Fits Most Holley 4500 Series Dominator Style Carbs | Clear Zinc Plating | Overall Length: 7/8" : Automotive
Chrome Air Cleaner, 2 Barrel Carb., 10 Inch - Walmart.com