Hi OP here, I think the censes here is it can not be a COB 0666 and with all your help here I agree totally, so I will be definitely removing the AC tag and cutting it up as soon as I have time and I will post pictures of the destroyed tag. I will replace with a Shelby tag
As far as the COB chassis number I think it should also be ground out of the chassis. I have checked every location where I have been asked to look for numbers and I will tell you there are none, also there is absolutely no evidence of anybody removing any numbers, all the paint on the chassis is consistent and there are no marks of tampering anywhere.
In the end this car will have no manufacture stamps or numbers anywhere.
Like I have said from the being, I thought it would be nice to know where it came from especially because I still need parts to complete it.
That's all!.
BK