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Username Post: Vacuum Advance- how is it supposed to work?
Frequent Contributor
Posts 2036
04-04-10 02:20 PM - Post#1892774    

Thank you for taking the time to write all that up. That really gets it clear in my head and gets to the point of a suspicion I have about the idle quality on my 383 in my 64 Impala. I will try out that Echlin vacuum advance can (cheap enough to try and see). My car seems to idle at about 15” and I was noticing the other day, when I put my finger on the bottom of the vacuum advance can to feel the rod, that it was dithering back and forth along with the idle, which has an erratic dive every so often. I am sure there are other issues, but removing this form the soup will help me find the others.
- Dave
1964 Impala 4-door sedan

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