The standard engine in the Cuda was a 318 I believe. Same as the Challenger Rallye.
If you look at the numbers posted, that leaves 1109 Cudas with the 318. I'm pretty sure you couldn't get a 318 with a 4-speed and I don't know if you could have gotten a 3-speed in a Cuda. A little searching around Barry's site should uncover a few things.