high CO 83 305

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Dec 28, 2010 | 04:37 PM

lljjstrade

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high CO 83 305

I have a 1985 K5 with a 305. Took it in for smog, and failed. The high speed CO is 1.31% and is not to be higher than 1.20% Can You help?

Dec 29, 2010 | 01:43 PM

LS1K5

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Are you running a cat and what is the HC at.

Dec 30, 2010 | 02:29 AM

lljjstrade

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I got it the timing was to far advanced. Thanks, JIM

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