Moroso Holley Needles and Seats 65412. Needle and Seat, Viton®, 0.130 in. Seat, Center-Hung Floats, Pair. Moroso Holley needles and seats are the parts you need for your Holley carburetor! If you use exotic fuels or additives such as alcohol, benzine, acetone, etc., you must use the steel-needle version.
