Ok so the reason I think it's running rich is because of the poor gas millage the way it sounds and carbon deposits on my tail pipe. Also I was told it would be running a little rich by the guys who did my engine swap. They said it would give me a better top end, as it would lean out at higher speeds. As for the mods well I have a 3.6 engine, ecu (don't know what kind), headers, de snorkel, just took out my K&N and I have no cats.
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