Stranger things have happened but I don't understand the tranny swap out. Was this car raced? I see the brake pedal is for an auto car.
Just for your information, the cutout in the tunnel on 1967 Camaros is exactly the same whether it had an automatic or manual tranmission. You can't tell what tranny it had just by that.
Haw about a picture of the firewall around the steering column and brake setup?
Nice car but...
Rick H.