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Old 06-04-2013, 12:41 PM   #5
68gmsee
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Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
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Re: running rough after 20 min of driving HELP!

After you check the above check for debris in carb and/or fuel filters, also there's a possibility of flooding due to sticky gummed up needle valve, even defective vacuum advance or problems with the distributor.
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68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...
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