My ECU has been trifecta tuned and I got a spare ECU from Ebay with the vin programmed I want to switch the old ECU out but I have a 2.9 pulley and 60lb injectors on the car and don't want to lean it out with the stock tune thats on the new ECU. Is the original tune file you shared in your original post with the 2.9 pulley also or is it with the stock pulley ?There are enough of us on here that use HP Tuners so I figured why not share a few of the files for comparison. I'm not suggesting that these files are the fix for your specific issues, but you can use them for comparison sake. Use at your own risk.
- This first one is (as I am told) a 07 Stock LSJ tune (07 LSJ Stock.hpt)
- 07 LSJ GM Stage 2
- Bone stock
- My Original tune file from ZZP with 60lbs injectors.
There is a tune in the HPT repository thats similar but on a 2.8 pulley also the one shared has cam,springs, pistons and rods.