Hi im new to the forum, and I just bought a 1980 trans am SE 301 turbo car with 27,000 orginal miles when I bought the car the guy was 95% sure it was a complete numbers matching car, but on the block I got a 7 digit number but the first 3 are letters which are WBO then the last 4 are numbers, and the first two of these numbers are the same as the last two on my vin number but the are backwards to the number on my vin. Can someone hopfully shed me some light here because im getten ready to do a complete rotisserie restoration on the car, thanks for any input and this is a very usefull site thanks again