The Edelbrock accelerator pump assembly part #1470 is designed for use with Edelbrock Performer Series 1400, 1403, 1404, 1405, 1406 EPS Carbs as well as 1801, 1802, 1803, 1804, 1805, 1806, 1825 and 1826 Thunder Series AVS carbs. Do NOT use with other brands