Any 12 second combos with 3.23s?
to go 103 with 80" tires, say at 5500, requires an overall gear ratio of 4.045. If you have 3.23s in the back then you would need; 4.045/3.23=1.25 ratio in the trans, which Mopar does not have. The closest is a 1.40 in Third gear,, in the regular box, making 103=6150 rpm. With the stock 340, this is waaaay off the powerband. But in direct-Fourth, the rpm drops to 4400 (with 80s), way too low for a good ET.
With 84" tires, the rpm comes down to 5850 in Third/ 4180 in Fourth, still wrong for the stocker.
But be of good cheer, to trap at 5400 with the stock cam would take 2.94s in Third gear or 4.10s to trap in Fourth...... and you are not likely to run either for very long.
103 is actually pretty good for your combo.