Join Date: Jun 2012
Location: Buffalo/Rochester area NY
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Is the air horn ring where the air filter base mounts larger on the Holley than the Quadrajet, or smaller? If it is smaller, you might be able to try the air filter base from a '66. The only difference between the '66 and '67 pancake air filters was the opening in the base as the '66 Carter AFB was a smaller opening than the Quadrajet. If memory serves me right, the AFB opening was 4" and the Quadrejet opening was 5".