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Old 04-16-2010, 04:28 PM   #1
sixbangr
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Join Date: Jan 2002
Location: Texarkana, Texas
Posts: 261
one barrel carb?

Truck has a 250 out of a 70 something Old,s. HEI, etc. Rebuilt the carb yesterday because it was loading up. I tried to set it with a vacuum gauge today. The air/ fuel mixture screw does nothing. I can turn it all the way in or out with no change. Just drove it and it is still loading up. What am I missing? thera are vacuum ports that are capped and the one port on top by the air horn that is open but it has no vac. so i assume it is fine.
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Last edited by sixbangr; 04-16-2010 at 05:09 PM.
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