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I have a 5.3 ls cam specs are lift .525/.525 .050:226/234 center line 103 also has long tubes on it. the o2 wont read and stumbles when a hit the throttle. smells like it is running rich. have check the o2 wires many times and they are right. tune and log file is posted as well. Thanks in advance.
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You are not logging the o2 sensors, that why they don't read anything. The o2 sensor channels must be present in the channels list for them to show data.
The fuel trims are working and they are not really that far off during that normal log. If you have long tube headers with no cats good luck getting rid of all of that fuel smell, some of that is always going to be there.
Get a wideband for tuning, you will need it. Start tuning the MAF and VE table to get the fueling correct for the change in camshaft.
Thanks for your help. the o2 work now. any way you can help me with VE table tuning and MAF tuning cause Im new at this.