I bought a new 1974 Duster 360/727/8-1/4 rearend when I was 18 yrs old. It had parchment interior with bucket seats, power disc brakes, power steering, rallye wheels & E70-14 Goodyears. It was yellow exterior with black stripes and the Duster360 callouts (pot metal) were behind the front wheel wells. No 360 callouts on the rear quarter from 1974-1976. Stripes in 1974 were same as 1973 I believe. It had no options other than those I described. It was your basic 1974 Duster 360 with no frills and except for the 360 motor it's hard to tell the difference from a 1973 Duster 340.

1974 Dusters did the have engine compartment braces too like in the above pics and engine was Chrysler blue.