Manley 221457 questions

Discussion in 'PSI Superchargers Tech Questions' started by frank70, Dec 14, 2025 at 7:22 PM.

  1. frank70

    frank70 NOSTALGIA DRAGSTER

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    Is anyone using the Manley next tech double spring 221457 on a 10,000 + rpm blown combination? If so how are they holding up, how far from coil bind is it installed , just pros,cons, & general info.
     
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