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Old 03-16-2016, 10:43 PM   #1
Dmax21
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Join Date: Feb 2016
Location: Tn
Posts: 45
Running rough and stumbling

I have a k20 that's been stumbling pretty bad when I get to around 60mph and yesterday it started doing it at any mph and I barely made it home, but the truck starts and idles fine and revs pretty good, it seems like the problem is while under load. The truck has a 350 with a Holley carb and been updated with a hei distributor and I recently just changed the plugs and plug wires. I've only owned the truck for about 2 months. What do you guys suggest I start with or maybe someone knows exactly what it is.
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