These are the OE inlet nuts used on the '65 - '72 OE Holley / Ford factory muscle car carburetors with a primary to secondary crossover tube. Correct nut for the standard 1/4" steel OE crossover tube.
10" Black Air Cleaner Set 4-Barrel 4 BBL 5-1/8" Neck Diameter Holley Ford Black
HOLLEY / FORD "COBRA CLONE" HI FLOW CJ / BOSS FUEL BOWL CROSSOVER CONVERSION KIT
Holley/Ford Premium Carb Rebuild Kit For 3 X 2 - Three Kits.
10" Air Cleaner Set 4-Barrel 4 BBL 5-1/8" Neck Diameter Holley Ford Chevy
Holley/Ford Carb Rebuild Kit For Three Deuces - Three Kits.
