Need some suspension/chassis guidance

There are some REAL fast leaf spring cars. I don't understand why everybody wants to jump on 4 link. Remember, whatever the spring setup, that as you get wider with tires, and less room for suspension, you are going to need "more and more" for an anti-sway bar for body roll control.

[ame="https://www.youtube.com/watch?v=cO3jFdKMd_s"]Worlds FASTEST Stock Suspension Mopar!! - YouTube[/ame]