msonbolg37x

Alright, So my car has had a lot of issues since supercharging and I feel and hope that this is the last issue.

So I had my transmission build by level 10 and it's running good for the most part. Shifts are clean and fast. Only problem I have is if I gun it from a stop in D with traction control off. The car will get to 7800 rpms and not shift. It will just go into red and not shift until I let off the throttle. Very seldom does it happen in DS mode and never in manual. I contacted level 10 and they told me that I need new plugs so I changed them and the issue didn't go away. I'm thinking it's a simple transmission tuning issue but level 10 thinks the issue is coming from somewhere else like traction control itself. What do you guys think?