For the ride height the indexing on the hex ends also matter, especially with the large bars. You can get into a situation where the range on the adjusters isn’t enough if the indexing isn’t right. I think most of the stock bars are indexed 20*, usually aftermarket stuff over 1.06” or so for A- bodies isn’t offset at all.
You can actually run larger than that!
Some C-body’s had torsion bars with a 1.41” hex. So the B-body NASCARs and some of the T/A and AAR cars used C-body anchors and custom bars. Firm Feel will still make you custom torsion bars, so, if you switched to C-Body anchors you could probably go all the way up to 1.4”. But that would be a wheel rate if like 750 lb/in!!!!
1.24” A-body bars would be a little north of 450 lb/in, which should be more than enough for even pretty serious road race cars.
But I agree, you can overspring for your set up. Tire compound and suspension travel matter.
