This fits 71 and earlier Quadrajet. 7/8" x 20 threads with 1" nut. Fuel fitting threads are 5/8 x 18.
Original used inlet housing for long filter. This used item will have blemishes and marks as it has been in use for the past 50 years. These original inlets may help a stubborn carb seal better. It is also perfect for the proper restoration.
We do offer plating for additional cost.