[venturaII]

If your combination of aftermarket springs and sway bars equaled the same total amount of roll resistance as a stock combo provided at a given amount of input, then the total amount of lean wouldn't be any different. However, given that you'd need to calculate the curve for two different contributing components to the total amount of roll resistance and compare how their overlap plotted out compared to oem, I don't think you'd ever come up with the same overall curve using a different combination of rates. If you used lighter bars, then you'd need correspondingly stiffer strings to compensate, which would pretty much ruin your ride quality in a straight line. The oem setup is pretty generous with stroke right out of the box, and is a pretty good blend of compliance and camber control, as is, for a strut front end. If anything, lighter springs/shocks and heavier bars would offer a more compliant ride while keeping overall balance/geometry roughly the same. There'd still be sacrifices in other areas though.