Anyone have any experience with their tuning? I searched threads on here and saw that they are inexperienced on the 3800 platform, but the threads were from the last couple years. I know they do a good job on LT1 cars as my friend has a Camaro with one. I am going to do a top swap and have been debating between pcm for less or an overkill tune. I know overkill does a great job, but just takes a while because he has a life other than tuning.