this kid thats trying to sell me a 91 firebird v6 hes convinced hes got a real formula and its worth 5k.would someone email him and explain the differnces and how to check the vin his email is alvarez_jason@yahoo.com .hes got a blue plain 91 firebird with the 15inch wheels,flat hood,plain rear spoiler,tear drop groundeffects and new v6 engine,hes asking 4500-5k for it lol and swears its a real v8 formula so if anyone has a little time please email this kid please,thanks