Manley NexTek Series 1.500 OD .850 Lift Super Stock and Competition Eliminator Valve Spring Set - 221420-16

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Manley .950in Valve Lift 1.522in OD NexTek Series Lightweight Dual Drag Race Valve Springs Set of 16

Manley NexTek Series 1.640 OD .8602 ID .900 Lift Sportsman and Bracket Classes Valve Springs

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Manley Oval Track NexTek Series 1.56in Dia .750in lift High Performance Valve Springs (Set of 16)