Seller notes

Holley QFT AED CCS3310/80508 750/780 CFM Carburetor Adjustable Metering Jet Plate Sold as Each (1) Works with Holley 3310/80508 Vacuum Secondary 750 cfm Carburetors ( 0-3310 0-3310C 0-3310S 0-3310-1 0-3310-2 0-3310-3 0-3310-4 R3310 80508 etc)Now you can tune your vacuum secondary carburetor without buying multiple jet platesJust remove the bowl & change jets like a conventional metering block. May require Notched Rear Float.The advantage is you can use all your existing components like fuel line...

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