Well i know the lightnings have a tendency to run rich that is the way they were programmed. But now my exhaust tips are blacker than chris rock. I got a new motor put in since i blew the old one and its an 02. So is somethin wrong wit my truck cause it's stock

 

rich is always safer than lean!

 

Running it it any better than the original?? And are you gonna do any mods on this one at all?? Or did you learn your lesson on the first one!!