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Old 08-20-2020, 08:36 PM   #9
GB SISSON
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Join Date: Jan 2014
Location: Orcas Island Washington
Posts: 2,600
Default Re: '40 Ford carb fine tuning help needed

Quote:
Originally Posted by flatjack9 View Post
The main jets are not in play at low speed off idle conditions. As noted, try enriching the idle a bit.
I'm sorry, but do the twin idle screws enrichen the mixture when turned clockwise ? I have twisted these two screws for 25 years to get that sweet spot, but still don't get if they control fuel or air.
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