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Old 11-09-2019, 11:57 AM   #9
eagle
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Join Date: Aug 2011
Location: Eagle Bend, MN
Posts: 2,027
Default Re: Backfire or popping when going down hill

As others have said, open the GAV a bit. I lean it out a 1/4 turn when cruising down the highway, but before I slow or come into town I open up the GAV the 1/4 turn again. That's half the fun of driving a model A, lots to do, knobs and levers to adjust, pedals to push, engine sounds to pay attention to, etc etc!
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