67 Cuda Fan Shroud

I'm looking for a 67 Cuda fan shroud or a part number. I can find plenty of shrouds for 68 and above and I even found one for the 66, but I cannot figure out what the difference is with the 67. I recently had a 340 built that I am very happy with and it runs cool when I'm moving, but at stop lights it creeps around 200 degrees. I would like to try a fan shroud; I don't want to screw up my new motor. Any help is appreciated!