Float Carburetor Center Hung | Holley 116-3Float Carburetor Center Hung Holley 116 3 Center Hung Carburetor Float Holley 116 3 Nitrophyl float for Holley carburetors with center hung float. Original Holley carburetor float Nitrophyl Black in color For Holley carburetors with center hung float Float arm is attached to the center of the float body and pivots or hangs from the center of the float bowl Replaces Holley 116 9, 116 2 Replaces Crusader 46094