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Old 09-21-2021, 12:55 PM   #5
Oldgearz
Senior Member
 
Join Date: Aug 2020
Location: Sagle, Idaho
Posts: 359
Default Re: GAV Adjustment While Driving?

To be honest with you, I've never figured my GAV out. Once the engine is warm, the car runs fine with the GAV closed. At 1/4 turn it starts to become too rich so that at 1/2 turn the engine has lost power. I've compromised (since lots of folks on this forum always talk about 1/2 to 3/4 as best) and generally drive at 1/8 open. I check my plugs after each 50 mile trip and the tips stay light tan so I am happy. I suspect my GAV needle seat is worn open and imagine lots of folks have the same issue without knowing it.
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