As far as the reason for wanting to adj. the fuel mixture. The distributor was bad so I replaced it. After I got the truck running the idles were off and it didn't seem to be running correctly. So I thought to check the mixture to see if it was correct. The analyzer was provided by my place of employment. I think the analyzer was helpful to me. Although I could not get it to were it would read the mixture and injection period. I will check the vacuum connections for leaks and see where that gets me, also the voltage at the o2 and use that as a ref to the mixture.
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