yup. Especially for a street car its more important to get the aligment with the caster and negative camber to the factory max (or a little more) than to have less complient bushings. Unles you are running very agressive tires, its going to be hard to take advantage of the switch to poly. For the front sway bar, go with the poly and use greasable bushings.
Go for the top of the line factory handling package sway bar, front torsion bars, leafs. Consider the option to go as high as 1.03 with the t-bars and a 1.125 sway bar as was just said. The most important thing is to replace all wear items. Unfortunately the one that many people try to skip is the rear leafs. This is also a wear item. Since you are starting with a /6 car, unless the car started with a Heavy Duty option, odds are these should be replaced even if it has under 80k miles on it. Some people may think I'm nuts but leafs do fatigue due to cycles (standard engineering design for springs is 1 million cylces) and abuse (excessive loads, or torque). Also the interleaves wear, corrode and sometimes the bushings do as well.
Basically the same thing for the brakes. For the drums to work as well as possible make sure everything is in top shape. Watch out for warped or twisted shoes. I my experience adjust frequently (do not rely on the auto adjusters) so they are all even.
Tires are about the most important thing you can do for traction. Get the best you can for the terrain, wheel size and ride height. Speaking of ride height, set the car near the bottom of the factory ride height specs or a a little lower (like the '67-69 Barracudas). Keep the rear ride hight stock or a little lower using a combination of (a) spring arch and spring rate to keep the static hight and (b)multi-position rear hanger. Of course if you're upstate and need more ground clearance then keep everything stock hight or a little higher.
Assuming your car did not come with a front sway bar, look at Firm Feel's for a non-weld on solution. Finally, but not last, look for some performance oriented non-adjustable shocks. Skip the KYBs. You're better off with one of the better parts store shocks. IMO the high speed damping is way over damped unless you think its funny watching coffee get shaken out of the most ardently held cup.
