New Red 340 air cleaner pie tins avalible @ summit racing.
The Summit site indicates that red is correct for 1967-1968 and orange for 1969-1971. Funny thing is that years ago I bought a 1970 340 intake and air cleaner with plate that was left from a guy’s 1970 340 Duster. The plate was red.
I don’t know if his Duster was an early production car for that year.