Speedway G-comp suspension

What tires and tire size did that nova have?

Notice the weight of that nova. A 65 nova is one of the lightest chevys. Not an accident they picked it. Like picking a 64 valiant over a 70 challenger.

Would like to see those upper coil overs tied into the front roll bar down tubes.

They have a competition setup , which may be what they are using . It uses a c7 Hubs and uses 275/35r18 tires.
I would think you could get an A-body down to 3k pounds pretty easy .

G-Comp Unser Edition 1962-67 Chevy II Nova Front Suspension Kit