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  1. MBC and Boost Limit

    9000 Performance, Mods & Tuning
    I installed the " D.I.Y" Manuel boost controller and it works perfectly (after having to replace worn spark plugs and distributor cap). However, i can only just barely get into the red portion of my gauge (1986) before the boost limiter steps in and cuts all my boost. My question to all is how...
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