Need Help With Off-Idle Surge

tekslk said

Disconnect the vacume, run it and see if problem is still there. When disconnected make sure you plug the hose.

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Even with this, if you still experience the problem it is timing.

My old MPP dizzy did this. Timing comes in WAY too fast on them and at low RPMs you can get surge.

That being said I do not run MPP dizzy's for a variety of reasons and I do not run vac, advance.

YOur car is a very heavy car with a very low stall. Don't go crazy on the advance curve.