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  1. 4000-5000 RPM Dyno Dip.

    Engine Management
    I noticed this on quite a few cars. We tuned. Something happens between 4000-5000 RPM on most Honda vtec motors. First I thought it was the Y7 manifold. But it was there with the Z6 and y8 and even the edelbrock manifold. We tried different intake lengths same issue. Then I thought it was the...
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