What's the dealer info on the page opposite the protectoplate?
T is turquoise interior
KK is artesian turquoise paint
B is bay city carb
T0303GF paul decoded for you
DB0223B is a 3:36 10 bolt rear axle assembled at Buffalo NY on 2/23/66
M is March assembly month
T0223D is a powerglide transmission assembled at Toledo OH on 2/23/66
options are 1 for power steering, 3 for a.m. pushbutton radio and a 1 for air conditioning
Have you checked under the back seat for a build sheet?