Best tubular upper control arms?

Who makes a minilite style wheel??? I am interested.

I'll go along with autoxcuda's suspension recommendation, though I prefer a polygraphite bushings myself for consistency. An alternative shock that has been recommended by others here is the Monroe Gas..

I have poly bushings on my Cuda and my Dart convertible. I don't think they are that necessary on street handling. But with the Dart convertible flex body I would not run them (previous owner install).

..
Not wild about mixed tire sizes either. Going wider at the rear than front promotes understeer. This isn't a big issue for a car with a rear weight bias, like a Porsche, but for an American V-8, it'll plow...

I'm not a fan because I want to do four tire rotations. The fronts take a beating at the track.

I don't know if autoxcuda has had problems with rubbing rear tires on the leaf springs. I have with cop car rims and found that fabricating a Watts link cured the problem, but limited wheel travel. An off-the-shelf Panhard bar (aka track bar) would cure the problem, too. However, the Panhard bar, in my experience makes the rear axle respond differently in left and right turns.

With a 245/60/15 with 15x7 4.25 backspacing (cop/ralley rims) I will get rear tires rubbing the leafs. Especially if you are throwing the car around real aggressive. On a 67-69 Dart that barely rubs the inside and outside if really pushed in corners.

With 245/50/15ZR BFG Comp TA I don't get that rubbing with 15x8 rallyes with 4.5 backspacing. That just as close to the leaf as the 245/60/15 with 4.25 backspacing. The 50 series Z-rated tire is a much stiffer sidewall and it's shorter with less leverage to roll over.

With a 67-69 Barracuda or Duster/Demon has more room on the outside for rear tires. So you can get a wider and little less backspacing. Like a 15x8 rim 4.25 backspacing and a 275/50/15 tire. IHMO the 275/60/15's look like balloons.

With the Team III rims and the VWW rims, I'd go to 16" or 17" rims.

On the conservative side:
Front
255/45/16 16x8 rims with 5" backspacing
Rear
255/45/16 16x8 rims with 4.25" backspacing OR run the same rims as up front but run 3/4 space so you can tire rotate. Benefit for running 4.25 (less) rear backspacing is that it make the rims look deeper in the rear and give it a look.

Pushing the tire size limits...
Front
275/40/17 17x9 rims with 5.5" backspacing. Must roll/cut 3/4" deep x 3" tall triangle out of lower front fender lip edge. Must run flat style upper ball joints.
Rear
275/40/17 17x9 rims with 5.5" backspacing and 65-67 B-body rear end and perches moved in.

The 275/40/17 17x9 rims are my personal next step.