Overview Reviews Product Description Needle and Seat - Adjustable - 0.150 Orifice - Steel - Holley Carburetors - Pair Product Videos Product Reviews Write a Review Write a Review × HOLLEY Needle & Seat HLY6-519-2 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *