IDing original Crossram intake Vs. New GM repro

[SuperNovaSS]

Does anyone know how to determine whether a crossram is an original 68-69 piece or a new GM licensed repop? I think I remember only certain dates being used on the new ones but do not know which ones. Any help would be greatly appreciated.


Thanks,


Jason http://www.yenko.net/ubbthreads/images/graemlins/beers.gif