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    Volvo trim DP

    I have a 1992 Volvo431 with Duoprop. It has the infamous digital gauge. The gauge is ok but barely readably. Recently I inherited a box of new Volvo parts and in the box was a complete analog trim set up minus the gauge. It has 4 harnesses, some relays, and a control unit. The only directions...
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    4.3L 4BBL Secondaries

    I have a 92 4.3L with the Rochester 4BBL. The engine runs smooth all the way up until around 4600 RPM and after that is starts to cough and sputter. I believe this is when the secondaries are opening. The secondaries are mechanically linked but the air valve is vacuum and I think my problem is...
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