cz777 Posted February 14, 2011 Share Posted February 14, 2011 anybody worked with the high altitude CPS yet? i know it advances the ignition app. 10* but it do the same to the fuel system as well -any kind of troubles with this ??? Link to comment Share on other sites More sharing options...
jimoshel Posted February 14, 2011 Share Posted February 14, 2011 Just advances the timing. Has nothing to do with fuel. Link to comment Share on other sites More sharing options...
Eagle Posted February 14, 2011 Share Posted February 14, 2011 I live at elevation 400 feet above sea level. I've been running a high altitude CPS in my '88 Cherokee for several years. No problems. I'm not that religious about keeping track of fuel mileage these days, but the reason I went to the HA CPS was to try to improve the fuel economy, and I think it helps a little. Link to comment Share on other sites More sharing options...
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