Compu cams XE268H question

well, I don't know. I am running a 509/292 in my 440 Duster with 3:23 and it is anything but a dog. I don't know how much difference there is between a big block and a small block but I can sit there and roast the tires. That's why I was looking at one for the small block. maybe there is a big difference, I don't know.