2 = Pontiac
U = Firebird Formula
87 = Hardtop Coupe
Y = 455 CI / 7456 CC V8, Rochester 4 barrel carburator, dual exhausts, 8.0:1 compression ratio, 250 HP @ 4000 rpm.
4 = Model year 1974 (20/09/1973 - 26/09/1974)
N = Built at the Norwood, Ohio factory
123164 = Norwood production number for model year 1974 (started with 100001)
Wheelbase: 108 inches / 274,3 cm
Lenght: 196 inches / 497,8 cm
Factory new price (without options) US$ 3659,-
Total Firebird Formula production for model year 1974: 14519 cars
YT = Model year 1974, 400 CI / 6554 CC V8, 215 HP, 8.0:1 compression ratio, 4 barrel carburator, automatic transmission only.