rocking engine

[nielsmobers]

Yes, the surging occurs the way you describe, it could be that I guest a little high in rpm's. Just to be sure that I know what surging is, does it mean that the engine runs irregular (It's hard to find a corresponding translation in dutch).
I ask this because the engine sounds normal when it runs idle and when you accelerate, or do you need a trained ear to hear the surge. Tomorrow I'll go to the Mustang meating in antwerp, there I will check other Grandé's how they vibrate and I'll check there vaccuum lines to compare them with mine.
Thanks.

Niels