rally dash question

To my knowledge, 70/71 Duster/Demon 340's had a 150mph speedo and an optional tach. No performance indicator was offered to my knowledge. With the barracudas, the speedo was 120 (earlier models) or 150 and a tach or performance indicator was optional. I could be wrong. Here are pictures comparing the two side by side, notice the finish differences (silver vs woodgrain). For a fact, both of the dash frames are identical EXCEPT Duster's/Demon's had the ignition in the steering column whereas barracudas had them in the dash frame themselves. Also, thumbwheel radios were avalible in both models depending on the year.....