Cutting the upper bump stop and make sure the shock has sufficient extension travel to accommodate that longer swing.
You want a weaker spring/torsion bar that is wound up tighter/more preload. Slant bars tend to work well in race applications. I like my stuff low with a ton of travel. Easier to limit travel than it is to find it when you need it.
There is usually a lot of time locked up in the front end of these cars. Most spend hours on the back, that's the easy end!
