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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

slight stumble

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Old Feb 1, 2010 | 11:49 PM
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vortilon
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slight stumble

I have been enjoying driving the 1970 F100 now and I have a slight stumble when letting out the clutch and accelerating. It is kind of annoying. I believe it may be caused by the choke pull off diaphragm being full of holes. This is the one part not included in the rebuild kit I purchased. Why I have no idea, it should be included. I have since ordered it from the Carb Doc. Has anyone else had this problem? The timing is set right at spec and ignition is all new. It is about the only thing I have not addressed. Could it be making it a bit lean?
 
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