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Old 03-17-2015, 05:32 PM   #6
geezer#99
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Join Date: Aug 2009
Location: Bowser
Posts: 13,522
Re: 67 c10 problem running

When you work it hard you get higher fuel pressure and volume. You're using the fuel until you slam the throttle closed. At that point you're flooding a bit. Makes it run rough. Lowers your idle.
You need to lower your float level.
Another problem you might have is your timing.
What's your initial timing and what rpm are you idling at?
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