I have a 67 firebird that has a 400 from a 71 gto in it. It is suppose to have the original carb, intake etc. Does anyone know where I can look up codes? I already looked up motor and heads. need intake, carb,dist. exhuast manifolds. I want to get an idea what this may be worth as I would really like to get the correct wz 400 for my 67 firebird conv. Thanks,Tyson