is your tune designed so that you can road test it yourself and add timing with unisettings/lemmiwinks, similar to the custom code phase 2 system or is your ignition timing considered to be at a "don't touch" maximum?
If you can take some o2 sensor logs that would be ideal to see if you are running pig rich. Alternatively a mechanic you might know might be happy to go for a blat around the block with you with an AFR sensor up the tailpipe.
Pull your plugs and see if they are fouled.
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