I have a Gen 3 5.3l that has a SD tune that never really worked right. Itls turbocharged with a LJMS stage 2 camshaft, methanol, 4.11 gears, Innovate SCG1 ect. The turbo is rear mounted. I need to find someone who would be comfortable tuning it. It was tuned with EFI live BTW. I am a little too far into it to start trying to tune it myself. Thanks.