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1986 460 Smog problem by Dale Anderson
I just rebult the Holley carb because it wouldn't cold start. Now it runs great but won't pass smog. A little hard to start when hot now. HC is high at idle (400 ppm), ok at 2500 RPM(137 ppm). CO is 8.3 at idle and 7.15 at 2500 RPM, Max is about 3.0. Seems to be running rich w/black sut.
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