Stock sway bar or Aftermarket?

You may want to check that out. IIRC, ADDCO made two front bar diameters for the 67-72 A-body. The larger diameter is 1.125 in diameter, the smaller is 1.00 inches, same as stock. You also may want to check out the distance between the "eyes" on the ADDCO bar. If the distance is the same as the stock bar, great. Some of their bars required the use of flimsy tabs that bolted to the lower shock mount. Ugh!

I will double check the size. If you saying its the same width of the stock bar use it, because it will go to the tabs? I noticed it came with those shock bolt brackets/tabs, but it came with a whole bunch of different brackets.

Stock bar is smaller than 1" (.88" for small block or .92" for big block).

Yep, that sounds like Torsion bar sizes.

I put a Hotchkis (spelling?) front sway bar on my 69 Barracuda fastback. The improvement in handling was very noticeable. My car used to wallow through traffic circles, now it carves them up. You will need to do some welding.

I've googled this bar and ran across some links about welding etc... It did come with all those different brackets that are suppose to bolt in, but I have not tried to mount this yet.

Sounds like you had the stock bar at first then switched to Hotchkis bar later... I didnt have a bar at all last year and it was pretty bad going thru those round a bouts.