This is a straight male 7/8"-20 with an inverted 5/8"-18 female flare and a 3/8" tube size. Fits the following carburetors; Holley 2300, 4150, 4150HP, 4160 (center-hung floats only), 4500, 4500HP and Rochester Quadrajet applications up to 1974.
For pre-1974 Quadrajet carburetors
For Holley 2300/4150/4150HP/4500/4500HP style carburetors
7/8 inch male To 5/8 inch-18 inverted female flare (3/8 inch Tube)
