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Old 04-11-2009, 10:45 PM   #4
68gmsee
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Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: Still have that stutter problem

I saw this the other day posted by norwegianc10. I noticed this particular comment:

"If you have no engine knock under acceleration, but the car chugs or jerks at cruising speed (light throttle application), you are getting too much vacuum advance on top of the mechanical advance. You may need to change out the vacuum advance diaphragm with an adjustable unit available from aftermarket sources. Adjust these units so that you get the most vacuum advance possible without any chugging or jerking at cruise speed."
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