68 383, 4spd Cuda value???

You're so right. The quality of the resto is a major factor in value. Rarity, how original, documentation, history all play a part, too. The E-body craze is still going strong & the 68-69 Charger R/T & six pack cars are skyrocketing in value. But the A-body performance cars like the cudas & Dart GTS are moving up. A few weeks ago in Vegas, my bro's 69 Charger R/T Super Trac Pac 4spd, took first in b-body modified. A guy offered him $160K there & then another went to the resto shop & offered $200K! I'm not bragging here, just illlustrating the fact that the quality of the resto is huge. Both your Darts should keep increasing, especially the original big blocks. Best of luck.