Datsun Roadster & Fairlady Some Late 2000 Needle & Seat
1500/1600 some 2000's Carburetor float chamber needle & seat.OEM correct length, no modification to float arm, bolt in and go!
Below is a guide to check if anyone has monkeyed around with your float lever.
Float level measurement: Turn the float chamber lid upside down with the needle seat and the flat arm in place. The distance from the tab, that touches the top of the float on the arm, to bottom of the lid should be .550 of a inch.