Go Wing or No wing on a 72 Demon 340

Depends on the car and what you want. Its an option, 70 and 71 Go wing . Late 71 Gull wing as shown on my Duster. 72 and later none. But they did make deck lids with the rib and spoiler cutouts. I had two of these deck lids in many years of buying Dusters and Demons they are rare.