Thread: Mechanical or Vacuum Secondaries?
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Old 04-21-2021, 06:40 AM
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Grubby Grubby is offline
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Join Date: Nov 2007
Location: Clayton, IN
Cobra Make, Engine: ERA 838
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Yes - Used a zip tie loosely on the shaft to show when it rotated.

Secondaries fully opened and I made several adjustments. The car ran better, but the double pumper woke it up like nothing I have seen.

The new car (new engine has a double pumper).

John
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