This is a classic case of a bad fuel air mixture.
Could be caused by any of a number of things.
              Eric

Zoran Mladen wrote:

>Hey folks,
>
>On our recently purchased 89 Wolfsburg, we were checking out the engine towards the evening hours, and noticed all four exhaust pipes (where they come of the heads) were glowing red hot when we held the RPMs around 2500 RPMs for a few minutes.
>
>This does not seem normal to me.  My thought is a partial clog in the cat or muffler.
>
>Do folks agree or is there something else to check?
>
>Z
>
>
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