Q-Jet Needle and Seat Assembly for Edelbrock and GM Rochester Q-Jet carbs. Not for computer-controlled carbs. Note: Calibration changes may affect emissions-legal status of number 1901, number 1902, number 1903, number 1904, number 1905 and number 1906.
Edelbrock Needle/Seat Kit .145in.
Edelbrock Remanufactured Thunder Series AVS 500 cfm, Square-Flange, Manual Choke Carburetor (non-EGR).