I'm not really a fan of GW because they use the B-body "tall" spindle with the poorly located steer arm that causes bumpsteer and turning radius/steering ratio problems.
You can get a modern "feel" with just sway-bars and a quick-ratio steering box but it still won't have a lot of grip in a high-speed turn. Basically it will feel a lot tighter, but to actually increase grip, you need to correct the front geometry.
I'd recommend SC&C (
www.scandc.com ) which has numerous options and packages to fit almost any budget.