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[ls6velless454]

I understand running a tune lean can save mpg's, but why would you want to sacrifice maybe say the motor? I would rather run slightly rich then run lean any day of the week. By the way there is a DHP on ebay if anyone wants a shot at it for cheap. Just a heads up

[Bio248]

I understand running a tune lean can save mpg's, but why would you want to sacrifice maybe say the motor? I would rather run slightly rich then run lean any day of the week. By the way there is a DHP on ebay if anyone wants a shot at it for cheap. Just a heads up

if youre not running your car lean when cruising then youre just wasting gas. lean up top is another story.