Quote Originally Posted by BLG355 View Post
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I just found these pictures this morning, I figured I'd share them. This is pretty much what brand new plugs looked like after running less than 10 miles on TBI Chips tune. I went through at least 5 sets of spark plugs (over 40 plugs) with the TBI chips tune trying to get them ran and datalogged. I am pretty much giving the engine the same fuel delivery now, give or take a few pounds of fuel, but running EagleMarks starter chip and they look like perfectly normal after several hundred miles. Has anyone ever been able to do this to brand new plugs so quickly?
Yea on a vortec with a bad spider and blown fuel pressure regulator.