2022 Camaro 2nd Dyno Day Jan 2024

2022 CAMARO ZL1 1LE with CALLAWAY SC750 kit. First dyno day in December 2022 showed the SC750 was not delivering the expected 640-660 rwhp. The spark advance was stuck at 10-12 degrees. It should have been 21 degrees. The second dyno day in January 2024 showed the same problem.