1967 Formula S?? a find or not!

Some time late in the 66 model year or in 67 the 8-3/4 became part of the 273 four barrel four speed package, but not necessarily all. My old 66 Commando four speed Barracuda had a 7-1/4, but the 67 Rallye Dart GT we parted out in 1981 (wrecked in 1974, but had a 273 four barrel and 904) had a 3.23SG 8-3/4.