2005 C6, I've locked the High/Low octane spark tables to 14 degrees (same superchared C6 I've been having problems, I think before I had said it was a 2006, with all week, but things are good now, aside from this), yet on WOT dyno pulls, the car is receiving 20+ degrees of timing. Needless to say there's a lot of knock because of that. I've gone through all the Multiplication and Addition Spark tables, and zero'd them out for the time being to see if that's where my extra timing was coming from, but it's still there.
Thanks,
Mike
PS. you guys are the best, I've figured almost all the problems I've had with this car just by reading you posts.