71 Demon 318 Auto or 72 Demon 340 4 speed

Depending on conditions I would consider both if I were you. Swap the nicer parts to the better car and sell the other to recoup some money. The 340 car will have three major components you would want for the 318 car. Besides the 4spd. You'l have the suspension, the 340 motor and the 8 3/4 rear and the rear is probably a 355 center section. The 340 is worth more then 5 k in parts alone.