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  1. K

    A4LD vacuum modulator ok with Boost?

    I have a 2.#L motor that I will be turbocharging. I also have a built up A4LD, that I want to use with it. I know the A4LD was used on the '87 and '88 Thunderbird Turbocoupes. The A4LD uses a vacuum modulator. My question is, if anyone knows the answer, can I use a vacuum modulator with a...
  2. K

    Stumbling and hesitation under boost

    Ok, while this car is not an SVO, the same principles should apply. I have a 1987 Thunderbird Turbocoupe. The problem I am having is that when full boost kicks in, the car starts to stumble, it surges a little bit, and just doesn't feel like it is giving full power. If the engine can get...
  3. K

    Hello all

    I am new here. I don't have a Mustang, but I do have a 1987 Thunderbird Turbocoupe, which shares some things in common with the Mustang. I liked the support on this forum, especially as compared to most of the Thunderbird forums.