318, 383 or other? Which one

Wow, thanks for all the replies guys. Right now for suspension I just have traction bars and air shocks and thats about it. The Carter I pulled off the 383 that I was talking about and just got a rebuild kit for it. I had a Holley on it but that was missing a lot of stuff from the previous owner so we decided to just try out the Carter.

I was looking at the Cal-tracks and they don't look like they would be to hard to put on. That would replace the traction bars correct?