FINALLY GOT IT BACK!
Mike looking through the thread I noticed your car has 71 twister stripes with 340 call outs / 72 340 stripes. Originally it had 71 340 stripes on an old picture with the 340's attached . Then the stripes were deleted on another old picture. Also the car at one time had a set of BB fenderwell headers as per pictures. Could the 340 decals and call outs been removed by your dad when a BB was installed.
Mike looking through the thread I noticed your car has 71 twister stripes with 340 call outs / 72 340 stripes. Originally it had 71 340 stripes on an old picture with the 340's attached . Then the stripes were deleted on another old picture. Also the car at one time had a set of BB fenderwell headers as per pictures. Could the 340 decals and call outs been removed by your dad when a BB was installed.