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  1. #1

    R&D Valve Spring and Retainer Set

    Anyone tried these? The claim is to have only the spring pressure required to keep the valves from floating (stock inner, new stonger outer & Ti Retainers) which is better for the valves and less HP reduction per R&D. I've been on the fence for a while on springs and wondered if anyone had experence with these.

    Thanks in advance for the help.


  2. #2
    NateRXP's Avatar
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    Supertech is popular. Get here from Greenhulk store.
    http://www.4-tecperformance.com/inde...oducts_id=1979

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