If you will notice, your accessory mounting is different. I'm just getting into these cars so I'm not sure what else may have been changed but your alternator has been relocated. Changes to the accessory locations means the original belt routing may have to be modified and all of the S/C cars might not share the same routing to begin with.
Or it could be installed incorrectly.
Does the car run well?
If the tensioners are keeping tension and the flat pulleys run on the back of the belt and the grooved pulleys on the inside, it might be correct.
[This message has been edited by Corsair231 (edited 12-10-2022).]