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351 cleveland not running correctly

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ok i have a 351c that i cant get to run right, it idles really ruff under 1000 rpms, then when you take it up to 2 or 3 and hold it there it pops through the exhaust every few seconds. any help would be awesome thanks guys.-Eric
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i had this same problem my 600 holley carb.It' was not rebuilt, like i paid this guy to do.I fought this thing for a month.Everything was new,so i thought.I bought a new holley street avenger 670.Now it runs like a top.351c 4bbl eldelbrock torker intake,crane cam 272dur 524lift.Now i need to replace my FMX for a c6.Id say it's your carb.
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