Possible Dealer Built Camaro

[MotownMadman]

Rat Pack, I bought these cars in Texas recently, I have yet to bring them home so after recieving your message I went and reviewed the video I had took of all of them, I was mistaken, the previous owner descibed them as duel traction bars, round, I didnt get under the car with the video camera, but the floor on both sides under the rear seat has been modified, it appears to have square panels that were cut out and replaced, or modified in some way, the cowl tag says 4N. Thanks.