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PAC-1321-16 PART NUMBER
PAC 1300 Series Drag Race Valve Springs PAC-1321$640.39Dual Spring, 1.522" Outer Diameter, 1.050" ID of outer spring, 0.710" ID of inner spring, Seat Pressure 400 @ 2.250, Open Pressure 1320 @ 1.300, Coil Bind 1.192", Set of 16 Springs
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