Stock Mopar bars have a 30 degree offset. This offset is what sets up the "preload" and suspension geometry. But that's for a stock spring rate.
Stiffer bars will not twist as much with the load of the car on them, so the ride height and geometry won't be right if they had the same offset. I've had this problem with the 1.16 bars on my challenger, you actually run out of suspension adjustment before the ride height is back down to normal. You need a lot less than the stock 30 degree offset.
Install the bars the way you normally would. The lca's will end up lining up with less angle on them. But that won't reduce your physical travel, since the bar will not twist as much under load. The stiffer bars will reduce the effective travel though, they just won't twist as much. So you can actually lower the car more (reducing the physical travel available) since you won't be using that travel.
1.03 bars will give a much more "modern" feel to the handling of your car. New cars run much higher spring rates than our old mopars, which were seriously under sprung in stock form. But it's important to match parts, you'll want to upgrade the shocks to handle the new larger bars, and new tires will help you take advantage of the new components.
