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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: cwest on November 02, 2015, 09:22:06 PM
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86' K20. Like an idiot I went and started pulling rubber vacuum hoses off of my stock 350M in the hopes of clearing some of the rats nest under the hood. I didn't take a 'before' picture, pulled one too many, and now I'm running rich (I think). It's idling a little rough, the exhaust went pungent, as well as some mild back firing on downshift. Does someone have a better picture or explanation than the Haynes diagram (which I can't decipher) of how the vacuum hoses are suppose to go? Or if there's an easier setup I should be thinking about with a new carb?
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I wanna say you have a vacuum leak
Causing it to run lean
There should be a under hood diagram of the vacuum line routing
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