Are you asking about real handling such as road racing, or drag race handling? Struts work just fine for drag race handling but they don't work so well for road racing. I helped build a Valiant road race car a few years back. It would go 160 mph on the front straight at PIR. It used a factory torsion bar setup. We looked into all of the aftermarket suspension kits available and none of them were designed for that kind of duty. Morrison announced a new kit out that might work for road racing, but I don't think it is available yet.